Message: Couldn't open Interface\AddOns\MeetingHorn\Libs\tdGUI\Libs\LibClass-2.0\LibClass-2.0.xml
Time: Thu Jun 3 17:37:07 2021
Count: 7

Any additional information? (example: WoW language if not English) (Attach screenshots here if available, do not link externally)

This is not a bug with ShestakUI, but rather the MeetingHorn addon.