If it’s just the case of the year end lock, you can delete the year end journal and push the lock back:
The untagged count should relate to everything that’s untagged - locked or not. If there are untagged transactions, you would most likely be left with entries in 9998 Suspense Account, which would need to be sorted to ensure the accounts are accurate.
Let me know how you get on the with the lock. Hopefully that’ll sort it for you 