YAF_DNN_1.96.1-5129 on a DNN portal v.07.01.00 (2676).

After successfully testing PMs we've now begun to receive an error message when attempting to send a PM.

"Sorry, user [USER] is not registered on this forum."

I'm not certain what may have changed to cause this to stop working. This is happening to all users and is repeatable. The users are active DNN users and have a linked user in YAF.

I'm not sure what else to send you that may help.

Thank you.