How to cure "Exceeded Tombstone life"

Made a registry entry which removed the servers error protection. I then replicated to a good server, and removed the registry entry. I did this on both servers and they're both working fine.

In the registry, add an entry.
Go to:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Parameters

And add the dword:
Allow Replication With Divergent and Corrupt Partner

Set the value to 1