Slim Application Error

The application could not run because of the following error:

Details

Type: ErrorException
Code: 2
Message: Trying to access array offset on value of type bool
File: /home/adjwilli/models/pangaea_object.php
Line: 298

Trace

#0 /home/adjwilli/models/pangaea_object.php(298): Slim\Slim::handleErrors(2, &
#039;Trying to acces...&
#039;, &
#039;/home/adjwilli/...&
#039;, 298)
#1 /home/adjwilli/models/pangaea_object.php(201): Pangaea_Object->languagize(&
#039;En allemand, co...&
#039;, Array, Array)
#2 /home/adjwilli/models/pangaea_object.php(152): Pangaea_Object->getString(&
#039;157975&
#039;, Array, Array)
#3 /home/adjwilli/models/lessons.php(1140): Pangaea_Object->loadArray(Array, Array)
#4 /home/adjwilli/models/lessons.php(260): Lessons->loadArray(Array, Array)
#5 /home/adjwilli/models/items.php(879): Lessons->get(NULL, Array)
#6 /home/adjwilli/models/items.php(75): Items->loadAdditions(Array)
#7 /home/adjwilli/htdocs/lesson-apps/index.php(185): Items->get(&
#039;6709&
#039;)
#8 /home/adjwilli/htdocs/lesson-apps/index.php(255): homePage(Object(Languages), Array, Object(Twig\Environment), Array)
#9 [internal function]: {closure}(Array)
#10 /home/adjwilli/vendor/slim/slim/Slim/Route.php(468): call_user_func_array(Object(Closure), Array)
#11 /home/adjwilli/vendor/slim/slim/Slim/Slim.php(1355): Slim\Route->dispatch()
#12 /home/adjwilli/vendor/slim/slim/Slim/Middleware/Flash.php(85): Slim\Slim->call()
#13 /home/adjwilli/vendor/slim/slim/Slim/Middleware/MethodOverride.php(92): Slim\Middleware\Flash->call()
#14 /home/adjwilli/vendor/slim/slim/Slim/Middleware/PrettyExceptions.php(67): Slim\Middleware\MethodOverride->call()
#15 /home/adjwilli/vendor/slim/slim/Slim/Slim.php(1300): Slim\Middleware\PrettyExceptions->call()
#16 /home/adjwilli/htdocs/lesson-apps/index.php(268): Slim\Slim->run()
#17 {main}