Hi,
That is strange and could indicate a deeper issue as the plugin can’t deactivate itself, unless it is triggered via the maintenance menu. Same with the settings, it can’t change the settings without user input. Are you sure you didn’t have a server rollback of some sort?
The most likely explanation for the de-activation can be a failed update hook in wordpress. It happens when the server is overloaded for a second right after the update is finished and WordPress does not re-activate the plugin. It is very unlikely you will experience that again.
I checked the search as well, tried a few phrases from the product tabs, but they seem to be indexed properly. For example searching “innovation” gives me these results, where in this case the word only appears in the tabs, so therefore it must be indexed.
