منتدى استراحات زايد

Our forum( http://www.aquariofilabcn.org/forum/ ) is having lots of problems since about 1 week ago:

1.- When you enter in a thread, the posts shown are not all the posts, and you can’t answer to the thread.If you refresh the page with your web browser then the information shown is correct, but it happens every time you enter a thread or the forum index (you have to refresh continuously).

2. - When you try to logout, the board returns a message: “All cookies have been deleted”, but if you enter to a thread you are still logged in.

3. - The time of the posts sometimes is incorrect and your last visit is incorrect too.

4. - The time shown on the footer is gmt+1 but the text says that is gmt+2.

We are on a non-dedicated server and we have done a script to check the time of the server and it is correct. We were running vbulletin 3.7.4 when we detected the problem, now we have updated to 3.8.2 but we are still having the problem. I have tried to stop all the products we have installed and we have the same problems. It’s a cookie problem? What we can do?