Deprecated: Return type of Symfony\Component\HttpFoundation\ParameterBag::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/vendor/symfony/http-foundation/ParameterBag.php on line 213

Deprecated: Return type of Symfony\Component\HttpFoundation\ParameterBag::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/vendor/symfony/http-foundation/ParameterBag.php on line 223

Deprecated: Return type of Symfony\Component\HttpFoundation\HeaderBag::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/vendor/symfony/http-foundation/HeaderBag.php on line 282

Deprecated: Return type of Symfony\Component\HttpFoundation\HeaderBag::count() should either be compatible with Countable::count(): int, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/vendor/symfony/http-foundation/HeaderBag.php on line 292

Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/vendor/symfony/http-foundation/Request.php on line 295

Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/DrupalKernel.php on line 997

Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/DrupalKernel.php on line 998

Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/DrupalKernel.php on line 999

Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/DrupalKernel.php on line 1002

Warning: ini_set(): Session ini settings cannot be changed after headers have already been sent in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/DrupalKernel.php on line 1004

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 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Component/Render/MarkupTrait.php on line 71

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 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Component/Render/MarkupTrait.php on line 61

Fatal error: During inheritance of JsonSerializable: Uncaught Error: Class "Drupal\Component\Render\FormattableMarkup" not found in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/includes/errors.inc:242 Stack trace: #0 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/includes/errors.inc(82): _drupal_log_error(Array, false) #1 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/includes/bootstrap.inc(305): _drupal_error_handler_real(8192, 'Return type of ...', '/is/htdocs/wp10...', 118) #2 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Component/Render/FormattableMarkup.php(61): _drupal_error_handler(8192, 'Return type of ...', '/is/htdocs/wp10...', 118) #3 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/vendor/composer/ClassLoader.php(476): include('/is/htdocs/wp10...') #4 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/vendor/composer/ClassLoader.php(344): Composer\Autoload\includeFile('/is/htdocs/wp10...') #5 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/StringTranslation/TranslatableMarkup.php(21): Composer\Autoload\ClassLoader->loadClass('Drupal\\Componen...') #6 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/vendor/composer/ClassLoader.php(476): include('/is/htdocs/wp10...') #7 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/vendor/composer/ClassLoader.php(344): Composer\Autoload\includeFile('/is/htdocs/wp10...') #8 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/includes/bootstrap.inc(249): Composer\Autoload\ClassLoader->loadClass('Drupal\\Core\\Str...') #9 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/modules/collapsiblock/collapsiblock.module(14): t('None.') #10 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/Extension/Extension.php(147): include_once('/is/htdocs/wp10...') #11 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/Extension/ModuleHandler.php(128): Drupal\Core\Extension\Extension->load() #12 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/Extension/ModuleHandler.php(141): Drupal\Core\Extension\ModuleHandler->load('collapsiblock') #13 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/DrupalKernel.php(584): Drupal\Core\Extension\ModuleHandler->loadAll() #14 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(45): Drupal\Core\DrupalKernel->preHandle(Object(Symfony\Component\HttpFoundation\Request)) #15 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/modules/page_cache/src/StackMiddleware/PageCache.php(191): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #16 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/modules/page_cache/src/StackMiddleware/PageCache.php(128): Drupal\page_cache\StackMiddleware\PageCache->fetch(Object(Symfony\Component\HttpFoundation\Request), 1, true) #17 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/modules/page_cache/src/StackMiddleware/PageCache.php(82): Drupal\page_cache\StackMiddleware\PageCache->lookup(Object(Symfony\Component\HttpFoundation\Request), 1, true) #18 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #19 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(52): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #20 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #21 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Core/DrupalKernel.php(706): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #22 /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #23 {main} in /is/htdocs/wp10965560_TG4JTRIA47/www/tierakademie/core/lib/Drupal/Component/Render/FormattableMarkup.php on line 61