Due to some of the turrets in rampant not having a circuit connection, you can't use them and if you try to press anything on the dart system it crashes.
Or at least crashed on my first try of doing anything, overall a mod that's great but shame it isn't compatible with all turrets.

Could you please add the complete error message from factorio-current.log. Without that it's impossible to analyze what's going on

No the crash is not important, it was one of the "troll" ones which happen once and never again,
it's more about the turret just not being compatible as in not being capable of being connected to the system.

If I understand you correctly, these turrets can't be connected to the circuit network - right? Well - in this case you should ask the other mods author to change that 😉 - as it's the only proper way to control a turret from remote. As soon as this has been done (assuming that these turrets are derived from ammo-turret), I am quite optimistic, that all would be fine.

There is no overide that could add additional circuits? Well, shame then cause considering that the rampant turrets mod seems to be maintained by someone who hasn't made the original, at least the version I use. It probably wouldn't work to ask them, so shame

Good news - I've found a clean way for adding the missing connectivity to the circuit network. Just published V 1.0.15 with the corresponding changes. https://mods.factorio.com/mod/RampantArsenalFork should work now.