Slim Application Error

The application could not run because of the following error:

Details

Type: Error
Message: Call to a member function id() on bool
File: /var/www/fastuser/data/www/vdpo.rf/src/classes/Traits/Sluggable.php
Line: 18

Trace

#0 /var/www/fastuser/data/www/vdpo.rf/src/classes/Controllers/CalendarController.php(46): App\Core\Calendar::takeBySlug('2019-7-7_otkryt...')
#1 /var/www/fastuser/data/www/vdpo.rf/src/classes/Support/Route.php(56): App\Core\Controllers\CalendarController->view(Object(Slim\Http\Request), Object(Slim\Http\Response), Array)
#2 [internal function]: App\Core\Support\Route->App\Core\Support\{closure}(Object(Slim\Http\Request), Object(Slim\Http\Response), Array)
#3 /var/www/fastuser/data/www/vdpo.rf/vendor/slim/slim/Slim/Handlers/Strategies/RequestResponse.php(40): call_user_func(Object(Closure), Object(Slim\Http\Request), Object(Slim\Http\Response), Array)
#4 /var/www/fastuser/data/www/vdpo.rf/vendor/slim/slim/Slim/Route.php(281): Slim\Handlers\Strategies\RequestResponse->__invoke(Object(Closure), Object(Slim\Http\Request), Object(Slim\Http\Response), Array)
#5 /var/www/fastuser/data/www/vdpo.rf/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\Route->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response))
#6 /var/www/fastuser/data/www/vdpo.rf/vendor/slim/slim/Slim/Route.php(268): Slim\Route->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response))
#7 /var/www/fastuser/data/www/vdpo.rf/vendor/slim/slim/Slim/App.php(503): Slim\Route->run(Object(Slim\Http\Request), Object(Slim\Http\Response))
#8 /var/www/fastuser/data/www/vdpo.rf/src/bootstrap.php(107): Slim\App->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response))
#9 [internal function]: Closure->{closure}(Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App))
#10 /var/www/fastuser/data/www/vdpo.rf/vendor/slim/slim/Slim/DeferredCallable.php(57): call_user_func_array(Object(Closure), Array)
#11 [internal function]: Slim\DeferredCallable->__invoke(Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App))
#12 /var/www/fastuser/data/www/vdpo.rf/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(70): call_user_func(Object(Slim\DeferredCallable), Object(Slim\Http\Request), Object(Slim\Http\Response), Object(Slim\App))
#13 /var/www/fastuser/data/www/vdpo.rf/vendor/slim/slim/Slim/MiddlewareAwareTrait.php(117): Slim\App->Slim\{closure}(Object(Slim\Http\Request), Object(Slim\Http\Response))
#14 /var/www/fastuser/data/www/vdpo.rf/vendor/slim/slim/Slim/App.php(392): Slim\App->callMiddlewareStack(Object(Slim\Http\Request), Object(Slim\Http\Response))
#15 /var/www/fastuser/data/www/vdpo.rf/vendor/slim/slim/Slim/App.php(297): Slim\App->process(Object(Slim\Http\Request), Object(Slim\Http\Response))
#16 /var/www/fastuser/data/www/vdpo.rf/src/public/index.php(21): Slim\App->run()
#17 {main}