The following sticks out:
It seems like there are data files in the dbPath that are not compatible with the version of MongoDB that you are running. You can either delete all the files in this path if the data is not needed. If you need/want to keep this data, then you can move them off in a new location and then try to figure out what version of MongoDB those files were created with and start that version of the mongod process at a later time. Once you have a clean dbPath directory, try running your brew services restart ... command again and see if you can get the process started.