Garmin Fenix 7 Pro Sapphire Solar watch, won't open the topographic map for Africa after downloading it from Garmin Express.

My Garmin Fenix 7 Pro Sapphire Solar watch, won't open the topographic map for Africa after downloading it from Garmin Express, on the watch it keeps saying download update on watch, keeps downloading and redownloading after reaching 100% and yet it says at the end, cannot unlock map, tried resetting the watch, tried reinstalling, tried removing the .img files from my watch from the PC through the browser, and turning the watch on and off, to make sure the map was no longer on the watch and installing the map again from Garmin express. at the moment i am totally frustrated.