Delete cache completely

Hello,
I always get this error:

2020-12-25 18:56:38.702 [ERROR] [org.openhab.core.model.script.Error ] - Some bad stuff happened in "read ephemeris files": java.lang.IllegalArgumentException: 2021-03-27T18:56:38.668579+01:00[Europe/Berlin] is not in a valid format.

But this rule isnot existing anymore.

I used alreade openhab-cli clean-cache and restarted but it’s still in the log…any more ideas??