Error on subsonic web page

[ArcticFox]

Hi.. Everything used to work fine but now after I have logged into subsonic web page, I get a windows error message pop up with now other description.
Everything appears to work and look ok but when I also go into settings and save it, I get the same error window!

Is there anywhere like a file that I could look at to get more information on what is causing the error.

Thanks

Paul

[BKKKPewsey]

That error message is one of those WTF messages that do appear for no apparent reason
Making the assumption that your server is running on windows

1. Stop SS
2. Delete the cache - C:\subsonic\jetty\XXXX\jsp\org\apache\Delete everything here
3. Restart SS

[ArcticFox]

Thanks for the reply and suggestion

I'm running on a Ubuntu server.

Any ideas what I should delete on this OS?

[BKKKPewsey]

Basically the same which I assume is in var\subsonic but I don't use your OS so