eXtremeUI v2

[Smut]

Hello. I asked this before but any idea what is causing this error on the control panel?

"A fatal error was encountered while accessing sb_buttoms.xml
Cause: Possiblefile Corruption. ErrorCode: 202:203"
after I hit okay, the CP exits.

Is this on my side? Any idea what the prob is/ or what is causing it?

I just redownloaded the install file and re installed. It asked if I would like to make extreme ui my default UI. When I pressed yes that is when this error happens. Is there a way to manually make extremeui my default ui so I can use and test it out?