Sync errors using ADDSync

We are trying to get ADDSync to work with Office 365.

servers: Windows 2012 r2

Environment: ADDSYNC

Cloud Service: Office 365

Federated Domain Services are setup and working

Our ADDsync (used to be dirsync) isn’t running properly anymore. We deleted a ton of test accounts, but some of them still existing only in the metaverse, they are gone in office365 and in our local ad. How do we get rid of them, they are getting sync-generic-failures. I've tried full sync on both connectors but each time it gives sync-generic-failure. How do I remove the item from the metasync. There are accounts about 1400 accounts that only exist in the metaverse. They are no longer in active directory or in the cloud. I've asked around the office 365 forum but no one seems to know how to get rid of the accounts from the metaverse.

Thanks,

Mike
​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​