Fixed it, I made an archive of the open directory using server admin, change it to standalone server to delete the open directory, then recreated the master open directory with same credetials as before. Restored the archive I made and it worked. I thought I would have had the same problem...
We've been starting to expiriment with getting an open direcotry server working and it's been working fine for a week or two now except all of a sudden i can't modify users anymore.
I am using directory administrator and tried logging in as both diradmin and root and I can login fine, I can...