The error would suggest that the DC is unable to get a RID pool allocation, the suggestion would be to check that the RID master is on-line and is accessible from the new DC.
This post provide details on how to confirm which DC is the RID master, and that RID pool hasn't been exhausted. You can use this post to confirm that the firewall\port are open. You can use this post to confirm that the schema version on each DC.
Gary.