The mod RitnBaseGame (0.6.6) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event RitnBaseGame::on_player_changed_surface (ID 59)
RitnCoreGame/classes/RitnSurface.lua:166: bad argument #1 of 4 to 'sub' (string expected, got nil)
stack traceback:
[C]: in function 'sub'
RitnCoreGame/classes/RitnSurface.lua:166: in function 'removePlayer'
RitnBaseGame/modules/player.lua:55: in function 'handler'
core/lualib/event_handler.lua:72: in function <core/lualib/event_handler.lua:70>

This is causing intsant crash with several character mods

/edit actually i tracked it with incompatibility with Hextorio mod, is there a way to allow compatibility?