Forum Modile Users getting Blank White Page

[محروم.كوم]

Hello, after going into admin cp-->options-->Styles and Languages

and changing Default Style for Modern Mobile Browsers: from "None" to "Default Mobile Style" and back to "None"

My mobile users are now getting a black white page.

I performed the "Update Tool" "Rebuild Styles" and still nothing

Any help would be great __DEFINE_LIKE_SHARE__