Css gone crazy - urgent help please

[minitech]

Hello
For some reason few hours ago my css gone crazy and all my site became white.
when i checked and try to delete the css and upload a back up
which are style.css [88KB] and style-dark.css [54KB] they changed to 80KB and 45KB right away after download, without touching them.

i think the problem has something to do with W3 Total Cache plugin.
please help me.

thanks in advance.

[Infopro]

i think the problem has something to do with W3 Total Cache plugin.
please help me.

This is not a cPanel plugin, nor a cPanel issue as far as I can tell by your post. It would be a good guess I think, to be looking at whatever you're using to cache files with as the issue. Not sure deleting the original css files is helpful though. Killing the built cache might be, but I can't comment on anything along those lines of any value.