We apologize for the instability of composr.app and appreciate your patience. We are working on the statistics addon and trying to find an optimal way to store and render data. Unfortunately, we have yet to find a solution that can handle the traffic (and therefore, tens of millions of statistical records) of composr.app. We're working hard on one.
Does this happen all the time, or only after performing an action (e.g. submitting a form, adding / editing / deleting content, etc.)? There is already a known bug similar to this on the tracker. I assigned it to Chris because I tried fixing it but could not. But in that issue, it only happens after performing an action mentioned above.
(Click to enlarge)
#6061 - Broken Error Link