@Wesker:
There seems to be a template modification compatibility issue with another add-on or your style.
But this can be solved easily:
Please make sure that all template modifications (ACP > Appearance > Template Modifications) of this add-on do show only green numbers after the activated checkbox in each line. If some of them are showing grey or red numbers click at the modification name to open them, reduce the "Execution Order" value by 1 and save.
To solve the ACP compatibility issue, activate Debug Mode, go to ACP > Development > Admin Template Mods and check the status of the acp modifications also. In case of any red or grey numbers do the same as above.
If you cannot do this yourself, we'll happily do it for you if you provide admin access to your acp (via private conversation) and also activate debug mode for us during the short time we need to work on that.