Which software were you running?

• Addon version name: Bagnon-10.2.18
• Client used: WotLK Classic and Classic Era/SoD

Have you read the changelog?
Yes

Please describe the bug.
Cannot interact with vendors, banks, mailboxes, auction house, etc. while in combat. No Lua errors, but the chat window simply says the following, "Interface action failed because of an AddOn"

Please describe how to reproduce it.

1. Get in combat through any various method, such as popping bloodrage on a warrior.
2. Try opening the mailbox, or a vendor, etc.

Error Logs are Important!
No Lua errors pop up when this happens

Yeah, addons aren't allowed to operate in combat. That's just how WoW works.