The mod Ballistic Missile (0.1.3) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event ballistic_missile::on_player_selected_area (ID 51)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
[C]: in function 'index'
__ballistic_missile/control.lua:333: in function <ballistic_missile/control.lua:316>

This was working just fine with my other mods so I'm not sure what has happened

This is strange. First guess is that the missile silo is not correctly registered.
These things could help:
- Rebuild the missile silos
- Type "/bm_repair" - this will check all silos for potential errors and tries to fix everything.
If you want to see what is happening first type "/bm_debug", you can disable the debug prints by repeating this command.

If both does not work, please upload your log file.

One more thing:
Do you have a mod installed that changes the forces in any way?
Eventually adding new enemy factions or something like that?
I might be able to fix an incompatibility if I know which mod causes it.

Only mod I have that change enemies is the arachnids mod I also am running krastorio if that helps ill the the bm_repair see if that does anything

Ok so I turned OFF the arachnids as a biter faction and it started working again

Thanks for the info. I just started a test game with the arachnids mod but everything is working fine so far.
I'll keep trying to reproduce the problem.

I guess this error occured when you tried to launch a missile with the targeting remote?