We recommend using clever-cloud for your MongoDB needs. This site allows you to have a free database and we have confirmed it works with FateUHC!
In order to setup MongoDB with FateUHC you must run the plugin once to generate the data.yml file. This is the default file that you can compare if needed.
#To setup this MongoDB we have provided a useful video to assist you.#https://www.youtube.com/watch?v=TXlaakGWdE0MONGODB:ADDRESS: 'mongoAddress'PORT: 25565DATABASE: 'mongoBase'AUTHENTICATION:ENABLED: falseUSERNAME: 'mongoUser'PASSWORD: 'mongoPassword'DATABASE: 'mongoBase'