administration error prestashop

[jok1]

Hello, I am my name is victor, I am writing you that I installed on my server ecommerce store that I think one of the best on the market. The entire installation has ido me great, but when I go to admin panel and insert or modify products or actions that affect database administration my first relentiza were often gives errors and duplicate data changed.
My mistake will be if not common, but is great that I despair, I speak with technical support that helped me porcierto is "easycgi" and I do not solve the problem and also find solutions for any forum, and the last attempt is contact you.

Anyway, I hope dediqueis for 5 minutes of your tienpo my agradeceria much doubt it, because I can not find solution to my problem.

greetings victor