when EC's config file is incorrectly formatted, it gets replaced by a default config which resets all values and removes all channels. This fix adds saving configuration into a backup file (config-file.yml.backup) on each load of EC, so you can salvage your old config and correct YAML errors in it. This way you don't loose your custom (albeit incorrect) values.
Changed:
the /mutec and /unmutec aliases to /ec_mutec and /ec_unmutec commands were changed to /mutech and /unmutech due to AdminAnything compatibility issue