App.js : 18321 - UnCaught Type Error: undefined is not a function

Hi, I seem to have a problem in my settings. I was playing around trying to get the compelted downloads to work properly but now I seem to have this error when clicking save. I’ve tried reverting settings, rebooting sonarr, chaning settings but nothing works.

Is there a log file anywhere or something that can point me to whats wrong?

Im on synology NAS .

Which version of Sonarr?

Its a UI only issue so nothing would be in the logs.

Thanks for your response
this is Sonarr Ver. 2.0.0.2850 running on synology NAS

Same error here. Same version of Sonarr. FreeNAS plugin.

Same Error. Same version of Sonarr. Running on Synology NAS. What now?