It looks to me that the "Hide Content" plugin is trying to integrate nicely with the Thank-You/Like System (TYL) plugin, except that several versions ago, we (the developers of the TYL plugin) dropped from the threads table the
tyl_tnumtyls
column that the "Hide Content" plugin is trying to update. We dropped it because it was literally not being used anywhere in our plugin other than having its contents updated - they were never meaningfully read/displayed. We hadn't, though, considered that other plugins might be using it.
If what this looks like to me is in fact what is the case, then probably the developer of the "Hide Content" plugin should be informed so he can drop references to the
tyl_tnumtyls
column. On the other hand, if that plugin (and potentially others) have a valid use for that column, then we ought to add it back in to the TYL plugin. Does anybody know whether the "Hide Content" plugin is doing anything useful with that now-dropped column?