[solved] Product tabular description fail

-- HikaShop version -- : 2.4.0
-- Joomla version -- : 3.4
-- PHP version -- : 5.3.27
-- Browser(s) name and version -- : all
-- Error-message(debug-mod must be tuned on) -- : none

Good morning

We have some problems on our website.

The tabular decription and the product read more fail to work.

Due to site live date (tomorrow 21st of march), we need help today.

Greetz

Dick

EDIT: we found the cause: seems to be a setting in JCH Optimise