Hi,
Is something with Numista database updates at the moment? I'm trying to add some new coins and I have multiple errors but finally I see that one coin was added 3 times (I need to add other from series so I will do the updates and this will be OK). I noticed that this kind of gatway error is regular for the mornings european timezone but today this is later and I guess other error messages.
Could be some kind of info on the top of the page that database is maintened and please wait with updates or some kind of this? It's a little frustrating when adding a lot of info and then all disappear because of error (or all is added 3 times as today).