I opened a server with mi friends and when i made the andesite generator it started to create vanilla ores. changed the config for the mod for the config on my singleplayer profile and now it works as intended.

im sorry if my english is difficult to understand, it isnt my mother lenguaje.

This happens when the config file cobblegenrandomizer-common.toml is not present or invalid.
Make sure the config provided by the pack is on the server and didn't get modified in the upload