Configuration file .toml is not correct

The forge server prints out a message:

[main/WARN] [ne.mi.co.ForgeConfigSpec/CORE]: Configuration file /data/config/rottencreatures-common.toml is not correct. Correcting

At the same time, he tries to re-create the mod's settings file. But it does it wrong. I think the mod generates a settings file with custom representations of setting names instead of key names. This is what it generates:

["Mob Spawns"]
    #determines how often will Burneds spawn
    "Burned Weight" = 20
    #determines how often will Frostbittens spawn
    "Frostbitten Weight" = 80
    #determines how often will Glacial Hunters spawn
    "Glacial Hunter Weight" = 20
    #determines how often will Swampies spawn
    "Swampy Weight" = 80
    #determines how often will Undead Miners spawn
    "Undead Miner Weight" = 20
    #determines how often will Mummies spawn
    "Mummy Weight" = 20
    #determines how often will Dead Beard spawn
    "Dead Beard Weight" = 1
    #determines the chance of spawning for Immortals
    "Immortal Chance" = 0.025

and this is how i try to fixed it:

[mobSpawns]
    #determines how often will Burneds spawn
    burned_weight = 20
    #determines how often will Frostbittens spawn
    frostbitten_weight = 80
    #determines how often will Glacial Hunters spawn
    glacial_hunter_weight = 20
    #determines how often will Swampies spawn
    swampy_weight = 80
    #determines how often will Undead Miners spawn
    undead_miner_weight = 20
    #determines how often will Mummies spawn
    mummy_weight = 20
    #determines how often will Dead Beard spawn
    dead_beard_weight = 1
    #determines the chance of spawning for Immortals
    immortal_chance = 0.025

But it did not help. When the server starts, it continues to produce backup copies of the settings.

teamfusion / rottencreatures

Configuration file .toml is not correct #8