Bug/Issue Disconnect when walking on planet

I played on my own, dedicated server. After tutorial, I explored the start planet, but got repeatedly disconnected (the game didn't crash though) due to an error:
[Error] Exception caught in client main-loop - (EofException) Failed to read full buffer in readFull, eof reached.

The server is running on Linux Debian 8, with high-performance hardware.
I myself am using Windows 7 64-bit (although I have to use the 32-bit version since the normal one wouldn't start).
The game was installed and launched through steam, which already checked the game.

Error log is atteched.

More information:
Playing on fullscreen.
I use a large quantity on mods, both server- and client-side installed (installed through workshop).
Error was repeatedly triggered by simply walking around the planet.
Not able to test if the bug would trigger on other OS.

I think the error might be related to the start-quest because normally the quest for the portal would trigger in the area I was.