Problem with categories descriptions - OT DigitalBox for Prestashop

Hello everybody,
First thank you for your futur help !

We are developping a prestashop website (it's a migration from a Joomla website, using the same theme) with omegatheme (OT DigitalBox for Prestashop) and we have a problem in displaying categories.
When categories descriptions exceed 292 characters, the page appear without css and with only the description we wrote. We also have an error message (dev mode activated on prestashop) :

Missing argument 1 for OmegaThemeOptions::cssGenerator(), called in XXX/modules/omegathemeoptions/omegathemeoptions.php on line 180 and defined in XXX/modules/omegathemeoptions/omegathemeoptions.php on line 790

Maybe the error message is not linked with the category issue (it appears even if the category page works correctly).
We can specify that we don't notice this issue with the default theme of prestashop.

Thank you for your help !

Hello eplastifieuse!

Thanks for using our theme!

Could you please send info access (admin, ftp) to email support: contact(at)omegatheme(dot)com I'll check it.

Regards,
Kien

Please replace with the path file XXX/modules/omegathemeoptions/omegathemeoptions.php on line 180