Kee fills Information in a nextcloud form where it's not wanted

Kee 3.2.7 (Firefox) trys to fill Information in the “email” field of the personal settings page of nextcloud (18). The data in the field is not overwritten, however, it’s ony marked red, but you can’t see the actual content of the field. see screenshot.
I specified the detailed url for the login page of all accounts that come into question in keepass. the url of the settings page is different from that.
how can that be? can I do something to avoid this behaviour?

Thank you, Stefan