Slim Application Error

The application could not run because of the following error:

Details

Type: ErrorException
Code: 8
Message: Trying to get property of non-object
File: /srv/www/vhost/httpdocs/vendor/VD/ProjectMapper.php
Line: 36

Trace

#0 /srv/www/vhost/httpdocs/vendor/VD/ProjectMapper.php(36): Slim\Slim::handleErrors(8, 'Trying to get p...', '/srv/www/vhost/...', 36, Array)
#1 /srv/www/vhost/httpdocs/index.php(162): VD\ProjectMapper->getPublishedByName(''nordnordmord'')
#2 [internal function]: {closure}('nordnordmord')
#3 /srv/www/vhost/httpdocs/vendor/slim/slim/Slim/Route.php(441): call_user_func_array(Object(Closure), Array)
#4 /srv/www/vhost/httpdocs/vendor/slim/slim/Slim/Slim.php(1314): Slim\Route->dispatch()
#5 /srv/www/vhost/httpdocs/vendor/slim/slim/Slim/Middleware/Flash.php(85): Slim\Slim->call()
#6 /srv/www/vhost/httpdocs/vendor/slim/slim/Slim/Middleware/MethodOverride.php(92): Slim\Middleware\Flash->call()
#7 /srv/www/vhost/httpdocs/vendor/slim/slim/Slim/Middleware/SessionCookie.php(110): Slim\Middleware\MethodOverride->call()
#8 /srv/www/vhost/httpdocs/vendor/slim/slim/Slim/Middleware/PrettyExceptions.php(67): Slim\Middleware\SessionCookie->call()
#9 /srv/www/vhost/httpdocs/vendor/slim/slim/Slim/Slim.php(1261): Slim\Middleware\PrettyExceptions->call()
#10 /srv/www/vhost/httpdocs/index.php(566): Slim\Slim->run()
#11 {main}