I cant install the standard Prestashop modules

[need4speed]

I have moved my webshop from a windows to a linux server. I exported the database but without the stats data.

I then moved the files to the new linux server and imported the database trough phpmyadmin.

Everything works except from the stats. I tryed to uninstall the stats modules but when Im trying to install them again.
Prestashop says that the module wasnt installed correctly.

I have CMOD all the module files to 777 but that didnt help.

Can anybody give me some suggestions?