Database (Error) Cscart_Product_Tabs Table

Trying to optimize database, getting this error?

Database (error)
Error: Table './XXX/cscart_product_tabs' is marked as crashed and last (automatic?) repair failed (144)

in phpmyadmin run repair table cscart_product_tabs, this repairs it but if try to optimize, getting this again.

How can I fix it? Any way to restore this table to default state?

Solved. Installed new cart, exported tables from one to another..