Reporting (Addon?) Bug

[penguinkirby]

[img]https://imgur.com/a/EgizyTF[img]

This started happening after I beat the orc ambush right after Dreadfell.
Now, when I try to open talents or press 'm' to open talents, I get this error. I'm unable to set a skill hotkey for a skill that I accidentally removed from my hotkey bar.
I also had an earlier issue where I could not view the shield that dropped from orc ambush, so it is probably due to the rare egos add-on. Is there a way for me to remove the offending addons and continue my game?