Add-On for MAC lookup -- target URL results in a 404

[patmalone_jdsuc]

I'm trying to use the "Add-On for MAC Lookup " and it errors with 'command="maclookup", : failed to setup the URL! Using https://www.macvendorlookup.com/api/v2/ as URL and d0-c5-f3-99-62-38 as MAC'. Visiting the URL by hand I get a 404. Is this add-on no longer valid/supported?

[jppasnak · Accepted solution]

The API is not enabled currently - the main page at https://www.macvendorlookup.com/ explains this.