A google for that addonactionblocked error .. SetTargetClampingInsets .. came up with the following ...
https://www.wowinterface.com/forums/...ad.php?t=55127
It is a nameplate addon (
https://www.wowinterface.com/downloa...ateColors.html ) that hasn't been updated since last year. Have you got that one installed ? Uninstall it and see how you fare for a while. It may still have in combat problems or forbidden commands being used.