Strange behaviour when adding attribute combinations

[bbnicu]

Hello,

My name is Nicu, i have an online store and i have the following problem.

 

When i try to add multiple attribute combinations to an existing product somtimes it works perfect, sometimes after i click save and stay it redirects me to the dashboard, 

The attribute is saved after 5-10 tries. 

Sometimes this works without any problems.

I say that always the first attribute is saved without any problems. 

This happends when i try to add the seccond and so on.

I't doesn't display any error, just it redirects me to dashboard.

 

I enabled, debug mode, and turned on display error, and no error showed up

 

I talked with my hosting provider to monitor for any error.

He told me that it was all ok.