Are you using the old warmerise custom map package?
i dont know .its can be. can you send me new package link?
https://drive.google.com/file/d/1EQ0HD12cPj6w4f9jcn4Ui4vnObgftTZO/view?usp=drivesdk Max created a forum topic about the new package, check it to get information of new package. https://warmerise.com/forums/topic/1906/custom-maps-2-0