Can someone please help I am having some major problems I changed servers a few days ago at first I got this error in the admin section I found a fix on the forum and it worked.

A couple of days ago this error started to happen on the front page all content disappears and just underneath the side boxes on the left and the side boxes on the right completely disappear.

If I upload the old database from the backup I made before I moved servers it is fine at first but then the day after this problem is back again.

I really need some help on this I have to get this sit backup and running I would appreciate any help that can be given.