Describe the problem

Interface\AddOns\BugSack\sack.lua:318: attempt to call method 'SetBackdrop' (a nil value) appears when attempting to open bugsack in retail wow.

What steps will reproduce the problem?

1. Install BugSack [v9.2.1] (2022-02-28)
2. Launch World of Warcraft Retail (9.2)
3. Log in on any character
4. Attempt to open BugSack to view possible bugs/issues
5. Observe error and bugsack not opening

What version of the addon are you using? (Stating 'latest' is not useful)

BugSack [v9.2.1] (2022-02-28) - r252

Do you have an error log of what happened?

Interface\AddOns\BugSack\sack.lua:318: attempt to call method 'SetBackdrop' (a nil value)

You are not using the latest version, there's no such thing as "r252".

Please close WoW & the CurseForge app, delete BugSack from your addons folder, open CurseForge and install it fresh. You probably have some kind of corrupt install.