How to fix "the page you have requested could not be found"

[pleasehelp]

I have virtue 1.1.12. when go to administrator of virtue mart and click on the product list or category, the page says "the page you have requested could not be found (404)".

It happens once a while preventing me to make changes on virtue mart. How can i fix this.

PLEASE HELP!

[MikeUK]

You've already started a thread about this and received replies. Starting new threads about the same issue will not help you or the forum.