all permalinks error500 since update 13Nov — and now I can’t even login anymore

If you have access to your server error log, generate the error again, note the date and time, then immediately check your server error log for any errors that occurred during that time period. If you don’t have access to your server error log, ask your hosting provider to look for you.

Thank you!

Solved! Many thanks!!

Glad to know it ??

@alice999 what was the issue if you don’t mind me asking? We seem to have a similar issue on a single site within a multisite network. All others seem to work ok. Very strange.

@mrhasbean The issue was a RSS plugin. After de-activating it, all was resolved. Good luck!