I've checked your account & you have Lightroom Mobile Premium from Appstore & Lightroom 1 TB from MacApp Store.
What version of Lightroom & the operating system are you working on?
Try these two things:
- Install Lightroom from the Mac Appstore.
- Use your email to log in instead of Apple & Google sign-in option when signing into Lightroom.
Let me know how it goes. Thanks!