The mod Robot Army (0.4.5) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event robotarmy::on_tick (ID 0)
LuaUnitGroup API call when LuaUnitGroup was invalid.
stack traceback:
robotarmy/robolib/retreat.lua:37: in function 'orderSquadToRetreat'
robotarmy/robolib/SquadControl.lua:51: in function 'executeBattleAI'
robotarmy/robolib/SquadControl.lua:18: in function 'updateSquad'
robotarmy/robolib/eventhandlers.lua:39: in function 'processSquadUpdatesForTick'
robotarmy/robolib/eventhandlers.lua:362: in function 'tickForces'
robotarmy/robolib/eventhandlers.lua:458: in function <robotarmy/robolib/eventhandlers.lua:455>
stack traceback:
[C]: in function 'index'
__robotarmy/robolib/retreat.lua:37: in function 'orderSquadToRetreat'
robotarmy/robolib/SquadControl.lua:51: in function 'executeBattleAI'
robotarmy/robolib/SquadControl.lua:18: in function 'updateSquad'
robotarmy/robolib/eventhandlers.lua:39: in function 'processSquadUpdatesForTick'
robotarmy/robolib/eventhandlers.lua:362: in function 'tickForces'
robotarmy/robolib/eventhandlers.lua:458: in function <robotarmy/robolib/eventhandlers.lua:455>