Just got this error, I do have other mods as well and reloading a save doesn't reproduce it, so who knows. Reporting anyway.
The mod Robot Army (2.4.20) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event robotarmy::on_tick (ID 0)
LuaCommandable API call when LuaCommandable was invalid.
stack traceback:
[C]: in function 'index'
__robotarmy/robolib/retreat.lua:41: in function 'orderSquadToRetreat'
robotarmy/robolib/SquadControl.lua:48: in function 'executeBattleAI'
robotarmy/robolib/SquadControl.lua:18: in function 'updateSquad'
robotarmy/robolib/eventhandlers.lua:89: in function 'processSquadUpdatesForTick'
robotarmy/robolib/eventhandlers.lua:446: in function 'tickForces'
robotarmy/robolib/eventhandlers.lua:559: in function <robotarmy/robolib/eventhandlers.lua:556>