hi , i am using Origin on my server with Mohist and when i died my origin was lost , and this spaming my console,

Player Droopi29 doesn't have an attached origin capability. This should be possible.

i'm on mohist, with the Origin mod version 0.7.3.7 with origin added mod and when i reconnect i have my origins like before the death !

If a bug cannot be replicated on a regular server, just don't. Mohist is broken, check with them.