Read this user manual to understand and make the best use of your terminal.
It presents you the necessary information about use, installation, maintenance, safety and security recommendations.
Error message
Warning: Undefined property: stdClass::$field_opensync_ai_metadata in Drupal\Core\Entity\Sql\SqlContentEntityStorage->loadFromDedicatedTables() (line 1269 of core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php).
Drupal\Core\Entity\Sql\SqlContentEntityStorage->loadFromDedicatedTables(Array, ) (Line: 503) Drupal\Core\Entity\Sql\SqlContentEntityStorage->mapFromStorageRecords(Array) (Line: 428) Drupal\Core\Entity\Sql\SqlContentEntityStorage->getFromStorage(Array) (Line: 394) Drupal\Core\Entity\Sql\SqlContentEntityStorage->doLoadMultiple(Array) (Line: 312) Drupal\Core\Entity\EntityStorageBase->loadMultiple(Array) (Line: 182) Drupal\Core\Entity\EntityRepository->getCanonicalMultiple('node', Array, Array) (Line: 174) Drupal\Core\Entity\EntityRepository->getCanonical('node', '2017', Array) (Line: 153) Drupal\Core\ParamConverter\EntityConverter->convert('2017', Array, 'node', Array) (Line: 100) Drupal\Core\ParamConverter\ParamConverterManager->convert(Array) (Line: 45) Drupal\Core\Routing\Enhancer\ParamConversionEnhancer->enhance(Array, Object) (Line: 270) Drupal\Core\Routing\Router->applyRouteEnhancers(Array, Object) (Line: 150) Drupal\Core\Routing\Router->matchRequest(Object) (Line: 90) Drupal\Core\Routing\AccessAwareRouter->matchRequest(Object) (Line: 105) Symfony\Component\HttpKernel\EventListener\RouterListener->onKernelRequest(Object, 'kernel.request', Object) call_user_func(Array, Object, 'kernel.request', Object) (Line: 111) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.request') (Line: 157) Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76) Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58) Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 28) Drupal\Core\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 32) Drupal\big_pipe\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 191) Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128) Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82) Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 36) Drupal\Core\StackMiddleware\AjaxPageState->handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 704) Drupal\Core\DrupalKernel->handle(Object) (Line: 19)Warning: Undefined property: stdClass::$field_opensync_ai_metafiles in Drupal\Core\Entity\Sql\SqlContentEntityStorage->loadFromDedicatedTables() (line 1269 of core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php).
Drupal\Core\Entity\Sql\SqlContentEntityStorage->loadFromDedicatedTables(Array, ) (Line: 503) Drupal\Core\Entity\Sql\SqlContentEntityStorage->mapFromStorageRecords(Array) (Line: 428) Drupal\Core\Entity\Sql\SqlContentEntityStorage->getFromStorage(Array) (Line: 394) Drupal\Core\Entity\Sql\SqlContentEntityStorage->doLoadMultiple(Array) (Line: 312) Drupal\Core\Entity\EntityStorageBase->loadMultiple(Array) (Line: 182) Drupal\Core\Entity\EntityRepository->getCanonicalMultiple('node', Array, Array) (Line: 174) Drupal\Core\Entity\EntityRepository->getCanonical('node', '2017', Array) (Line: 153) Drupal\Core\ParamConverter\EntityConverter->convert('2017', Array, 'node', Array) (Line: 100) Drupal\Core\ParamConverter\ParamConverterManager->convert(Array) (Line: 45) Drupal\Core\Routing\Enhancer\ParamConversionEnhancer->enhance(Array, Object) (Line: 270) Drupal\Core\Routing\Router->applyRouteEnhancers(Array, Object) (Line: 150) Drupal\Core\Routing\Router->matchRequest(Object) (Line: 90) Drupal\Core\Routing\AccessAwareRouter->matchRequest(Object) (Line: 105) Symfony\Component\HttpKernel\EventListener\RouterListener->onKernelRequest(Object, 'kernel.request', Object) call_user_func(Array, Object, 'kernel.request', Object) (Line: 111) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.request') (Line: 157) Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76) Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58) Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 28) Drupal\Core\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 32) Drupal\big_pipe\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 191) Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128) Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82) Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 36) Drupal\Core\StackMiddleware\AjaxPageState->handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 704) Drupal\Core\DrupalKernel->handle(Object) (Line: 19)Deprecated function: unserialize(): Passing null to parameter #1 ($data) of type string is deprecated in Drupal\Core\Entity\Sql\SqlContentEntityStorage->loadFromDedicatedTables() (line 1269 of core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php).
Drupal\Core\Entity\Sql\SqlContentEntityStorage->loadFromDedicatedTables(Array, ) (Line: 503) Drupal\Core\Entity\Sql\SqlContentEntityStorage->mapFromStorageRecords(Array) (Line: 428) Drupal\Core\Entity\Sql\SqlContentEntityStorage->getFromStorage(Array) (Line: 394) Drupal\Core\Entity\Sql\SqlContentEntityStorage->doLoadMultiple(Array) (Line: 312) Drupal\Core\Entity\EntityStorageBase->loadMultiple(Array) (Line: 182) Drupal\Core\Entity\EntityRepository->getCanonicalMultiple('node', Array, Array) (Line: 174) Drupal\Core\Entity\EntityRepository->getCanonical('node', '2017', Array) (Line: 153) Drupal\Core\ParamConverter\EntityConverter->convert('2017', Array, 'node', Array) (Line: 100) Drupal\Core\ParamConverter\ParamConverterManager->convert(Array) (Line: 45) Drupal\Core\Routing\Enhancer\ParamConversionEnhancer->enhance(Array, Object) (Line: 270) Drupal\Core\Routing\Router->applyRouteEnhancers(Array, Object) (Line: 150) Drupal\Core\Routing\Router->matchRequest(Object) (Line: 90) Drupal\Core\Routing\AccessAwareRouter->matchRequest(Object) (Line: 105) Symfony\Component\HttpKernel\EventListener\RouterListener->onKernelRequest(Object, 'kernel.request', Object) call_user_func(Array, Object, 'kernel.request', Object) (Line: 111) Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher->dispatch(Object, 'kernel.request') (Line: 157) Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76) Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58) Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 28) Drupal\Core\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 32) Drupal\big_pipe\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 191) Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128) Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82) Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48) Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 36) Drupal\Core\StackMiddleware\AjaxPageState->handle(Object, 1, 1) (Line: 51) Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 704) Drupal\Core\DrupalKernel->handle(Object) (Line: 19)