Error in GUI XML file with every patch

[Brawley17]

Previously I had 3 folders in my UiFiles folder. Classic, default, and default_old. Now I only have default. I found a thread about the duxa ui which had instructions on adding the default old folder files, did that...but still no classic folder. I feel like that must be the issue for me, but I can't find the original classic folder anywhere as I didn't make a backup.