Werk #11915: Fix error messages on check plugin page if check or catalog entry is missing

Component GUI
Title Fix error messages on check plugin page if check or catalog entry is missing
Date Jan 14, 2021
Checkmk Editon Checkmk Raw (CRE)
Checkmk Version 2.1.0i1 2.0.0b5
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

Missing checks of check plugins with manual page lead to an undefined error message. If such an error occurs now, a meaningful error message is displayed.

Also, in case of missing catalog entries in the manual page, the catalog is set to "unsorted" correctly now.

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