server crash: bad argument #1 to 'punch' (userdata expected, got nil)

[superfloh247]

2021-05-12 13:28:29: ERROR[Main]: ServerError: AsyncErr: ServerThread::run Lua: Runtime error from mod 'vehicles' in callback luaentity_Step(): /opt/minetest/bin/../mods/vehicles/init.lua:204: bad argument #1 to 'punch' (userdata expected, got nil)
2021-05-12 13:28:29: ERROR[Main]: stack traceback:
2021-05-12 13:28:29: ERROR[Main]: [C]: in function 'punch'
2021-05-12 13:28:29: ERROR[Main]: /opt/minetest/bin/../mods/vehicles/init.lua:204: in function </opt/minetest/bin/../mods/vehicles/init.lua:197>