Fatal error: Uncaught Error: Call to a member function checkPolicy() on null in /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modX.php:2017
Stack trace:
#0 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/Sources/modMediaSource.php(182): MODX\Revolution\modX->hasPermission('directory_chmod')
#1 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/Sources/modMediaSource.php(135): MODX\Revolution\Sources\modMediaSource->getPermissions()
#2 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/Sources/modFileMediaSource.php(27): MODX\Revolution\Sources\modMediaSource->initialize()
#3 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modElement.php(592): MODX\Revolution\Sources\modFileMediaSource->initialize()
#4 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modElement.php(643): MODX\Revolution\modElement->getSourceFile(Array)
#5 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modScript.php(205): MODX\Revolution\modElement->getFileContent(Array)
#6 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modElement.php(535): MODX\Revolution\modScript->getFileContent(Array)
#7 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modElement.php(383): MODX\Revolution\modElement->getContent(Array)
#8 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modScript.php(75): MODX\Revolution\modElement->process(Array, NULL)
#9 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modX.php(1716): MODX\Revolution\modScript->process(Array)
#10 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modX.php(1290): MODX\Revolution\modX->invokeEvent('OnPageNotFound', Array)
#11 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modRequest.php(125): MODX\Revolution\modX->sendErrorPage()
#12 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modX.php(1509): MODX\Revolution\modRequest->handleRequest()
#13 /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/index.php(63): MODX\Revolution\modX->handleRequest()
#14 {main}
  thrown in /var/www/vhosts/fasnachts-comite.ch/httpdocs/fasnachts-comite.ch/public/core/src/Revolution/modX.php on line 2017