Seahub won't start after upgrade

this is what the log says:

About to perform start for seahub at 2018-11-24T23:08:51+0100

LC_ALL is not set in ENV, set to en_US.UTF-8
Starting seahub (fastcgi) at …

Warning: File comment has changed since version 6.3, while table `base_filecomm$

^[[33mError:Seahub failed to start.^[[m
—end cut—

I don’t understand the warning.
on the forum i read some stuff going on with fastcgi not being supported anymore, but havent got clue what i should do next

If somebody could be my light in these dark days??

Kind Regards

If you had been using FastCGI, it’s deprecated now. You have to switch to WSGI and proxy_pass, as described in the manuals.

This is because you have to convert your old comments. A script for this is shipped by the Update.