Had to add Your changes in How to add a custom menu item and now it works again.
EDIT:
I did a ./daily.sh , now I con’t get to the webinterface at all, but when I check librenms.log I see a stack trace whenever I call the webinterface:
[2018-09-12 11:02:04] production.ERROR: ErrorException: file_put_contents(/opt/librenms/storage/framework/cache/data/a2/e3/a2e33a1054e69b8e67fdec79e8e92f7ef1097c07): failed to open stream: Permission denied in /opt/librenms/vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:122
Stack trace:
#0 [internal function]: Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(2, 'file_put_conten...', '/opt/librenms/v...', 122, Array)
#1 /opt/librenm (...)