CRRWC01025 An error occured while updating a link between servers, the link from the other server could not be updated. The link from the other server to this server could not be updated because the other server is not available or communication with it has failed.
The user probably cannot delete or create the link on the remote server because he doesn't have the permission or the resource is missing.
Go to the remote and try to create or remove the link from it. Or, go to CLM in a new tab and log out the current CLM user. At next login choose a user that has rights to access the create/delete link on the Artifact.