Server (1.12.2) crashes when driving the ship

[ZerdNerd]

• The version of the mod: 6.340
• MC: 1.12.2
• Forge: 14.23.5.2768
• The crash report or log: https://gist.github.com/Anoneedes/8c39c20e6d66ada19e095bd6f0971426

Long story short: On the 1.12.2 server, mounting the ship (less then 500 blocks big) is fine, controlling is fine, but suddenly server crashes. I think this has to be something with the DV, because when ship is not mounted, crash does not occur.