Password reset on synology

Using Sonarr on Synology DSM6, I set and seem to have forgotten my password. I found and tried editing the config file within /usr/local/nzbdrone/app, but found only the following:

        "title": "Sonarr",
        "desc": "Sonarr Web UI",
        "icon": "images/nzbdrone-{0}.png",
        "type": "url",
        "protocol": "http",
        "port": "8989",
        "url": "/",
        "allUsers": true,
        "grantPrivilege": "local"

I’ve seen references to turning off authentication in the config file – is there another config file that I don’t know about that can be edited, and if not, is there another way to reset the password?

See: https://www.reddit.com/r/sonarr/comments/57623g/help_changing_password/