Hello,
I encounterd this crash report as soon as one meteor was about to strike:

Error while running event apm_starfall_ldinc::on_tick (ID 0)
Resource amount has to be larger than 0.
stack traceback:
    [C]: in function 'create_entity'
    __apm_lib_ldinc__/lib/script/starfall.lua:455: in function 'create_ore_remains'
    __apm_lib_ldinc__/lib/script/starfall.lua:528: in function 'create_impact'
    __apm_lib_ldinc__/lib/script/starfall.lua:592: in function 'process_event'
    __apm_lib_ldinc__/lib/script/starfall.lua:641: in function 'process_event_queue'
    __apm_lib_ldinc__/lib/script/starfall.lua:766: in function 'on_tick'
    __apm_starfall_ldinc__/control.lua:41: in function 'event_on_tick'
    __apm_starfall_ldinc__/control.lua:64: in function <__apm_starfall_ldinc__/control.lua:64>
2485.578 Error ServerMultiplayerManager.cpp:92: MultiplayerManager failed: "The mod Amator Phasma's Starfall (Addon, forked) (0.19.57) caused a non-recoverable error.
Please report this error to the mod author.

I also had the richness multiplier on 0.1. I never got a crash report like this before, so this might be one of those rare-occuring bugs, where the calculated random amount of the ore resource happened to be 0 or something.