I am getting this issue

I did everything, Modified the time, modified the modified time, change permission to 775 and 777 etc. but this one error is not going away (BTW my safe mod is on)
When I run JS Compressor, it runs fine and gives me no error. But still I get this error
The /***/public_html/clientscript/vbsc.js cache has a modification time of before /***/public_html/clientscript/vbulletin-core.js. Your cache is almost certainly out of date. Please run Compress Javascript under vB4: SuperCharged in your Admin CP.
If you recently updated vBulletin, you should of course run Compress CSS also

To prevent issues, your forum is currently running without optimised Javascript as a fallback.