0x803F8001: This App Is Not Licensed for Your Account or This Device
0x803F8001 means the signed-in account holds no entitlement. Check which account the Store is using, then assign a licence that includes the app.
0x803F7001 and 0x803F7000: No Digital Licence Found for This Device
0x803F7001 means Windows could not find a valid licence for this device. Learn when an entitlement can be recovered for nothing and when you must buy one.