( ! ) Deprecated: Return type of Drupal\Core\Render\Markup::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/Render/MarkupTrait.php on line 71
Call Stack
#	Time	Memory	Function	Location
1	0.0222	2493536	_drupal_exception_handler( $exception = class Drupal\Core\Database\DatabaseAccessDeniedException { protected $message = 'SQLSTATE[HY000] [1045] Access denied for user \'lsbtp\'@\'localhost\' (using password: YES)'; private string ${Exception}string = ''; protected $code = 1045; protected string $file = '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Driver/mysql/Connection.php'; protected int $line = 423; private array ${Exception}trace = [0 => [...], 1 => [...], 2 => [...], 3 => [...], 4 => [...], 5 => [...], 6 => [...], 7 => [...], 8 => [...], 9 => [...], 10 => [...], 11 => [...], 12 => [...]]; private ?Throwable ${Exception}previous = class PDOException { protected $message = 'SQLSTATE[HY000] [1045] Access denied for user \'lsbtp\'@\'localhost\' (using password: YES)'; private string ${Exception}string = ''; protected $code = 1045; protected string $file = '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Driver/mysql/Connection.php'; protected int $line = 416; private array ${Exception}trace = [...]; private ?Throwable ${Exception}previous = NULL; public ?array $errorInfo = [...] } } )	.../bootstrap.inc:0
2	0.0226	2525632	_drupal_log_error( $error = ['%type' => 'Drupal\\Core\\Database\\DatabaseAccessDeniedException', '@message' => 'SQLSTATE[HY000] [1045] Access denied for user \'lsbtp\'@\'localhost\' (using password: YES)', '%function' => 'Drupal\\Core\\Database\\Driver\\mysql\\Connection::open()', '%file' => '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Driver/mysql/Connection.php', '%line' => 423, 'severity_level' => 3, 'backtrace' => [0 => [...], 1 => [...], 2 => [...], 3 => [...], 4 => [...], 5 => [...], 6 => [...], 7 => [...], 8 => [...], 9 => [...], 10 => [...], 11 => [...], 12 => [...], 13 => [...]], '@backtrace_string' => '#0 /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Database.php(371): Drupal\\Core\\Database\\Driver\\mysql\\Connection::open(Array)\n#1 /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Database.php(166): Drupal\\Core\\Database\\Database::openConnection(\'default\', \'default\')\n#2 [internal function]: Drupal\\Core\\Database\\Database::getConnection(\'default\')\n#3 /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php(79): call_user_func_array(\'Drupal\\\\Core\\\\Dat...'...], $fatal = TRUE )	.../bootstrap.inc:618
3	0.0263	2803864	Composer\Autoload\ClassLoader->loadClass( $class = 'Drupal\\Component\\Render\\FormattableMarkup' )	.../errors.inc:251
4	0.0264	2804024	Composer\Autoload\includeFile( $file = '/var/www/lsbtp.mech.ntua.gr/vendor/composer/../../core/lib/Drupal/Component/Render/FormattableMarkup.php' )	.../ClassLoader.php:322
5	0.0266	2823568	include( '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/Render/FormattableMarkup.php )	.../ClassLoader.php:444
6	0.0268	2832168	_drupal_error_handler( $error_level = 8192, $message = 'Return type of Drupal\\Component\\Render\\FormattableMarkup::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice', $filename = '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/Render/FormattableMarkup.php', $line = 118, $context = ??? )	.../FormattableMarkup.php:61
7	0.0268	2832168	_drupal_error_handler_real( $error_level = 8192, $message = 'Return type of Drupal\\Component\\Render\\FormattableMarkup::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice', $filename = '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/Render/FormattableMarkup.php', $line = 118, $context = NULL )	.../bootstrap.inc:600
8	0.0271	2928296	Composer\Autoload\ClassLoader->loadClass( $class = 'Drupal\\Core\\Render\\Markup' )	.../errors.inc:78
9	0.0272	2928424	Composer\Autoload\includeFile( $file = '/var/www/lsbtp.mech.ntua.gr/vendor/composer/../../core/lib/Drupal/Core/Render/Markup.php' )	.../ClassLoader.php:322
10	0.0273	2930016	include( '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Render/Markup.php )	.../ClassLoader.php:444

( ! ) Deprecated: Return type of Drupal\Core\Render\Markup::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/Render/MarkupTrait.php on line 61
Call Stack
#	Time	Memory	Function	Location
1	0.0222	2493536	_drupal_exception_handler( $exception = class Drupal\Core\Database\DatabaseAccessDeniedException { protected $message = 'SQLSTATE[HY000] [1045] Access denied for user \'lsbtp\'@\'localhost\' (using password: YES)'; private string ${Exception}string = ''; protected $code = 1045; protected string $file = '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Driver/mysql/Connection.php'; protected int $line = 423; private array ${Exception}trace = [0 => [...], 1 => [...], 2 => [...], 3 => [...], 4 => [...], 5 => [...], 6 => [...], 7 => [...], 8 => [...], 9 => [...], 10 => [...], 11 => [...], 12 => [...]]; private ?Throwable ${Exception}previous = class PDOException { protected $message = 'SQLSTATE[HY000] [1045] Access denied for user \'lsbtp\'@\'localhost\' (using password: YES)'; private string ${Exception}string = ''; protected $code = 1045; protected string $file = '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Driver/mysql/Connection.php'; protected int $line = 416; private array ${Exception}trace = [...]; private ?Throwable ${Exception}previous = NULL; public ?array $errorInfo = [...] } } )	.../bootstrap.inc:0
2	0.0226	2525632	_drupal_log_error( $error = ['%type' => 'Drupal\\Core\\Database\\DatabaseAccessDeniedException', '@message' => 'SQLSTATE[HY000] [1045] Access denied for user \'lsbtp\'@\'localhost\' (using password: YES)', '%function' => 'Drupal\\Core\\Database\\Driver\\mysql\\Connection::open()', '%file' => '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Driver/mysql/Connection.php', '%line' => 423, 'severity_level' => 3, 'backtrace' => [0 => [...], 1 => [...], 2 => [...], 3 => [...], 4 => [...], 5 => [...], 6 => [...], 7 => [...], 8 => [...], 9 => [...], 10 => [...], 11 => [...], 12 => [...], 13 => [...]], '@backtrace_string' => '#0 /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Database.php(371): Drupal\\Core\\Database\\Driver\\mysql\\Connection::open(Array)\n#1 /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Database.php(166): Drupal\\Core\\Database\\Database::openConnection(\'default\', \'default\')\n#2 [internal function]: Drupal\\Core\\Database\\Database::getConnection(\'default\')\n#3 /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php(79): call_user_func_array(\'Drupal\\\\Core\\\\Dat...'...], $fatal = TRUE )	.../bootstrap.inc:618
3	0.0263	2803864	Composer\Autoload\ClassLoader->loadClass( $class = 'Drupal\\Component\\Render\\FormattableMarkup' )	.../errors.inc:251
4	0.0264	2804024	Composer\Autoload\includeFile( $file = '/var/www/lsbtp.mech.ntua.gr/vendor/composer/../../core/lib/Drupal/Component/Render/FormattableMarkup.php' )	.../ClassLoader.php:322
5	0.0266	2823568	include( '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/Render/FormattableMarkup.php )	.../ClassLoader.php:444
6	0.0268	2832168	_drupal_error_handler( $error_level = 8192, $message = 'Return type of Drupal\\Component\\Render\\FormattableMarkup::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice', $filename = '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/Render/FormattableMarkup.php', $line = 118, $context = ??? )	.../FormattableMarkup.php:61
7	0.0268	2832168	_drupal_error_handler_real( $error_level = 8192, $message = 'Return type of Drupal\\Component\\Render\\FormattableMarkup::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice', $filename = '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/Render/FormattableMarkup.php', $line = 118, $context = NULL )	.../bootstrap.inc:600
8	0.0271	2928296	Composer\Autoload\ClassLoader->loadClass( $class = 'Drupal\\Core\\Render\\Markup' )	.../errors.inc:78
9	0.0272	2928424	Composer\Autoload\includeFile( $file = '/var/www/lsbtp.mech.ntua.gr/vendor/composer/../../core/lib/Drupal/Core/Render/Markup.php' )	.../ClassLoader.php:322
10	0.0273	2930016	include( '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Render/Markup.php )	.../ClassLoader.php:444

( ! ) Fatal error: During inheritance of JsonSerializable: Uncaught Error: Class "Drupal\Component\Render\FormattableMarkup" not found in /var/www/lsbtp.mech.ntua.gr/core/includes/errors.inc:251 Stack trace: #0 /var/www/lsbtp.mech.ntua.gr/core/includes/errors.inc(74): _drupal_log_error(Array, false) #1 /var/www/lsbtp.mech.ntua.gr/core/includes/bootstrap.inc(600): _drupal_error_handler_real(8192, 'Return type of ...', '/var/www/lsbtp....', 118, NULL) #2 /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/Render/FormattableMarkup.php(61): _drupal_error_handler(8192, 'Return type of ...', '/var/www/lsbtp....', 118) #3 /var/www/lsbtp.mech.ntua.gr/vendor/composer/ClassLoader.php(444): include('/var/www/lsbtp....') #4 /var/www/lsbtp.mech.ntua.gr/vendor/composer/ClassLoader.php(322): Composer\Autoload\includeFile('/var/www/lsbtp....') #5 /var/www/lsbtp.mech.ntua.gr/core/includes/errors.inc(251): Composer\Autoload\ClassLoader->loadClass('Drupal\\Componen...') #6 /var/www/lsbtp.mech.ntua.gr/core/includes/bootstrap.inc(618): _drupal_log_error(Array, true) #7 [internal function]: _drupal_exception_handler(Object(Drupal\Core\Database\DatabaseAccessDeniedException)) #8 {main} in /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/Render/FormattableMarkup.php on line 61
Call Stack
#	Time	Memory	Function	Location
1	0.0222	2493536	_drupal_exception_handler( $exception = class Drupal\Core\Database\DatabaseAccessDeniedException { protected $message = 'SQLSTATE[HY000] [1045] Access denied for user \'lsbtp\'@\'localhost\' (using password: YES)'; private string ${Exception}string = ''; protected $code = 1045; protected string $file = '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Driver/mysql/Connection.php'; protected int $line = 423; private array ${Exception}trace = [0 => [...], 1 => [...], 2 => [...], 3 => [...], 4 => [...], 5 => [...], 6 => [...], 7 => [...], 8 => [...], 9 => [...], 10 => [...], 11 => [...], 12 => [...]]; private ?Throwable ${Exception}previous = class PDOException { protected $message = 'SQLSTATE[HY000] [1045] Access denied for user \'lsbtp\'@\'localhost\' (using password: YES)'; private string ${Exception}string = ''; protected $code = 1045; protected string $file = '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Driver/mysql/Connection.php'; protected int $line = 416; private array ${Exception}trace = [...]; private ?Throwable ${Exception}previous = NULL; public ?array $errorInfo = [...] } } )	.../bootstrap.inc:0
2	0.0226	2525632	_drupal_log_error( $error = ['%type' => 'Drupal\\Core\\Database\\DatabaseAccessDeniedException', '@message' => 'SQLSTATE[HY000] [1045] Access denied for user \'lsbtp\'@\'localhost\' (using password: YES)', '%function' => 'Drupal\\Core\\Database\\Driver\\mysql\\Connection::open()', '%file' => '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Driver/mysql/Connection.php', '%line' => 423, 'severity_level' => 3, 'backtrace' => [0 => [...], 1 => [...], 2 => [...], 3 => [...], 4 => [...], 5 => [...], 6 => [...], 7 => [...], 8 => [...], 9 => [...], 10 => [...], 11 => [...], 12 => [...], 13 => [...]], '@backtrace_string' => '#0 /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Database.php(371): Drupal\\Core\\Database\\Driver\\mysql\\Connection::open(Array)\n#1 /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Core/Database/Database.php(166): Drupal\\Core\\Database\\Database::openConnection(\'default\', \'default\')\n#2 [internal function]: Drupal\\Core\\Database\\Database::getConnection(\'default\')\n#3 /var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php(79): call_user_func_array(\'Drupal\\\\Core\\\\Dat...'...], $fatal = TRUE )	.../bootstrap.inc:618
3	0.0263	2803864	Composer\Autoload\ClassLoader->loadClass( $class = 'Drupal\\Component\\Render\\FormattableMarkup' )	.../errors.inc:251
4	0.0264	2804024	Composer\Autoload\includeFile( $file = '/var/www/lsbtp.mech.ntua.gr/vendor/composer/../../core/lib/Drupal/Component/Render/FormattableMarkup.php' )	.../ClassLoader.php:322
5	0.0266	2823568	include( '/var/www/lsbtp.mech.ntua.gr/core/lib/Drupal/Component/Render/FormattableMarkup.php )	.../ClassLoader.php:444