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Mac App Store Broken on macOS 10.14 and Earlier
I’m getting a report from a user that the Mac App Store doesn’t work on macOS Sierra 10.12.6 anymore - they get “An unexpected error occurred while signing in.” I also see these threads in the the Apple Support Community: - App Store No Longer Working in Mac OS 10.12.6 Sierra - Unable to log into App Store from OSX 10.12.6 (Sierra) as of January 27, 2025 Apple made changes to Mac App Store receipts on January 24, 2025. Looks like with this change they have also rendered the Mac App Store unusable on older systems, so that customers on these systems can no longer download their purchased apps.
I’m getting a report from a user that the Mac App Store doesn’t work on macOS Sierra 10.12.6 anymore - they get “An unexpected error occurred while signing in.” Looks like with this change they have also rendered the Mac App Store unusable on older systems, so that customers on these systems can no longer download their purchased apps. Thus, you can browse the store but can’t make new purchases, re-download old ones, or install updates.
Or read this on r/apple
