Titles not visible anymore

Hi all,

Really not sure what happened, but everything seemed to work really nice. But, few moments ago, I just lost all the titles. I think that happened even before I updated plugin to the 1.7.0 version.

Please let me know if you have any ideas what could be a problem (removed URL since not relevant any longer).

Thanks,

https://www.ads-software.com/plugins/jquery-collapse-o-matic/