Werk #17840: Notification setup: Fix ValueError if default method is not available

Component	Notifications
Title	Notification setup: Fix ValueError if default method is not available
Date	Mar 21, 2025
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.5.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.4.0b2 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

If the default notification method "HTML Email" was not available (e.g. no permission), a ValueError was shown in step 3 of the notification setup.

To the list of all Werks