> This is a known issue for Metadot 6. It comes from one or more
> corrupted instance parent-child relationships (what a
> description!) that create infinite loop, fills up the memory,
> make your server swap and finally crash it altogether.
>
> Here is the fix:
> http://wiki.metadot.net/metadot-6-7/loopy
>
> Daniel

Thank you Daniel, this seems to have resolved our issue.