The mod Ammo Loader+ (1.1.2) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event ammo-loader::on_tick (ID 0)
ammo-loader/lib/TrackedSlot.lua:279: attempt to index field 'player' (a nil value)
stack traceback:
ammo-loader/lib/TrackedSlot.lua:279: in function 'new'
ammo-loader/lib/TrackedSlot.lua:169: in function 'createSlots'
ammo-loader/lib/TrackedSlot.lua:142: in function 'trackAllSlots'
ammo-loader/lib/createdQ.lua:252: in function 'tick'
ammo-loader/lib/Handlers.lua:201: in function <ammo-loader/lib/Handlers.lua:197>

Triggers at start of cutscene.

Thanks for letting me know about this. I'm working on an update, and I'll let you know once I've got a fix uploaded

I just uploaded 1.1.3 which should fix this bug. Let me know if you still have issues!