Please post versions of theme and core nodebb. Sounds like there is a mismatch.

Solved! Well, Uberspace ... Hope that will help other users to run NodeBB with Uberspace. The problem was the run-file I used for the daemon. This is my new code. ([USER]/etc/[YOUR-SERVICE]/run cd $HOME/[NODEBB-FOLDER] ./nodebb start In the official NodeBB documentation the preffered method to start is ./nodebb start. Don't follow third party tutorials in this case ... NodeBB seems unstable with other methods to start. I will test it further, but for now it seems to work pretty well.