Associations tab not loading in 1.6

[SaLiC 1]

I installed prestashop 1.6 but I cant associate products to categories. When I open a product (imported) or try to add a product I get the text below in a popup.

If I click okay and go to the association tab is empty, the page is blank.

 

I found a few topics about this, the solutions in them is not working. Some of them explain how to change some coding, but the changes is already made in my files.

 

 

"Tab : Associations (500)
A server error occurred while loading the tabs: some tabs could not be loaded.
Please try again by refreshing the page.
If you are still encountering this problem, please check your server logs or contact your hosting provider for assistance."

[SaLiC 1]

I Reinstalled prestashop 1.6 because I could not find a solution for this.

[Andrei Ciobotariu 0]

Hi,

 

I had the same problem. The reason was that I had no category.