I see a couple things happening here:
[1] You're running multiple instances of OBS. If both are trying to stream to the same endpoint, (ie: you were streaming to one, OBS looked like it crashed, but was still running in the background, and you started another instance and started streaming again), you're gonna have issues.
[2] You're using wifi. Stop that. - Seriously though, you should never stream on a wireless connection, way too many things that can cause instability in your connection. In fact, that instability can be detected by the server end, and lead to....
[3] Your OBS appears to be receiving an 'fd_close' - this is typically from the server end shutting down the connection / closing it, which can happen if, as I mentioned in the 2nd item, the server detects that connection quality is incredibly unstable.
I can't stress enough how much you should *not* be using the wireless connection to stream. That said, if you have no other choice (ie: you have no ethernet adapter), I'd start by updating your wireless card's drivers and see if that helps the issue.