Error when edit configuration in UI

[mrsombre]

The method "Playbloom\Satisfy\Model\Archive::getPrefixUrl()" returned "null", but expected type "string". Have you forgotten to initialize a property or to make the return type nullable using "?string" instead?

With this satis.json archive section

"archive": {
        "directory": "dist",
        "format": "zip",
        "skip-dev": false,
        "whitelist": [],
        "blacklist": [],
        "checksum": true,
    },

Notice by default it is no "prefix-url" option for archive.