[SMODS jimbos_metrics "src/mathx.lua"]:106: attempt to call global 'to_number' (a nil value)
The game crashed when viewing Jimbo's Metrics from the option menu, deleting the underscore in return to_number(num) at line 106 in the mathx.lua file fixed the issue for me. Attached below is the full crash text if you'd like to look through it.