Deprecated: Creation of dynamic property Template::$hide_global_chat is deprecated in /var/www/html/main/inc/lib/template.lib.php on line 88

Warning: mkdir(): Permission denied in /var/www/html/main/inc/lib/template.lib.php on line 101

Deprecated: Twig\Environment::__construct(): Implicitly marking parameter $loader as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/twig/twig/src/Environment.php on line 122

Deprecated: Return type of Twig\Node\Node::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/vendor/twig/twig/src/Node/Node.php on line 213

Deprecated: Return type of Twig\Node\Node::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/vendor/twig/twig/src/Node/Node.php on line 221

Deprecated: mb_convert_encoding(): Handling HTML entities via mbstring is deprecated; use htmlspecialchars, htmlentities, or mb_encode_numericentity/mb_decode_numericentity instead in /var/www/html/main/inc/lib/internationalization.lib.php on line 1242

Warning: Undefined array key 1 in /var/www/html/main/inc/lib/api.lib.php on line 1575

Deprecated: preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /var/www/html/main/inc/lib/api.lib.php on line 1582

Deprecated: Security::check_token(): Implicitly marking parameter $form as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/main/inc/lib/security.lib.php on line 154

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/main/inc/lib/template.lib.php on line 1704

Deprecated: trim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/main/inc/lib/template.lib.php on line 1762

Deprecated: Doctrine\ORM\Mapping\ClassMetadataInfo::__construct(): Implicitly marking parameter $namingStrategy as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php on line 665

Deprecated: Doctrine\ORM\Mapping\ClassMetadataInfo::getColumnNames(): Implicitly marking parameter $fieldNames as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php on line 1917

Deprecated: Doctrine\ORM\Persisters\Entity\BasicEntityPersister::load(): Implicitly marking parameter $orderBy as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php on line 720

Deprecated: Doctrine\ORM\Persisters\Entity\BasicEntityPersister::loadAll(): Implicitly marking parameter $orderBy as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php on line 891

Deprecated: Doctrine\ORM\Persisters\Entity\BasicEntityPersister::getSelectSQL(): Implicitly marking parameter $orderBy as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php on line 1049

Deprecated: Doctrine\ORM\Persisters\Entity\BasicEntityPersister::exists(): Implicitly marking parameter $extraConditions as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/BasicEntityPersister.php on line 1991

Deprecated: Doctrine\ORM\Persisters\Entity\EntityPersister::getSelectSQL(): Implicitly marking parameter $orderBy as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/EntityPersister.php on line 75

Deprecated: Doctrine\ORM\Persisters\Entity\EntityPersister::load(): Implicitly marking parameter $orderBy as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/EntityPersister.php on line 200

Deprecated: Doctrine\ORM\Persisters\Entity\EntityPersister::loadAll(): Implicitly marking parameter $orderBy as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/EntityPersister.php on line 263

Deprecated: Doctrine\ORM\Persisters\Entity\EntityPersister::exists(): Implicitly marking parameter $extraConditions as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/Entity/EntityPersister.php on line 329

Deprecated: Doctrine\ORM\Mapping\DefaultQuoteStrategy::getColumnAlias(): Implicitly marking parameter $class as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/DefaultQuoteStrategy.php on line 150

Deprecated: Doctrine\ORM\Mapping\QuoteStrategy::getColumnAlias(): Implicitly marking parameter $class as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/QuoteStrategy.php on line 117

Deprecated: Doctrine\ORM\AbstractQuery::setHydrationCacheProfile(): Implicitly marking parameter $profile as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/AbstractQuery.php on line 509

Deprecated: Doctrine\ORM\AbstractQuery::setResultCacheProfile(): Implicitly marking parameter $profile as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html/vendor/doctrine/orm/lib/Doctrine/ORM/AbstractQuery.php on line 539

Fatal error: Uncaught Error: Class "Brumann\Polyfill\Unserialize" not found in /var/www/html/main/inc/lib/UnserializeApi.php:112 Stack trace: #0 /var/www/html/main/inc/lib/plugin.class.php(359): UnserializeApi::unserialize() #1 /var/www/html/main/inc/lib/plugin.class.php(236): Plugin->get() #2 /var/www/html/main/inc/lib/plugin.class.php(95): Plugin->getSettingsForm() #3 /var/www/html/plugin/courseblock/plugin.php(4): Plugin->get_info() #4 /var/www/html/main/inc/lib/plugin.lib.php(563): require('...') #5 /var/www/html/main/inc/lib/template.lib.php(976): AppPlugin->getPluginInfo() #6 /var/www/html/main/inc/lib/template.lib.php(260): Template->set_plugin_region() #7 /var/www/html/main/inc/lib/userportal.lib.php(28): Template->__construct() #8 /var/www/html/index.php(29): IndexManager->__construct() #9 {main} thrown in /var/www/html/main/inc/lib/UnserializeApi.php on line 112