We had several problems with the database today, which caused users to receive a misleading error message.
If you tried to enter notes this afternoon/evening (especially around 7:10 - 7:30pm MET) and received a message saying "Your note was entered, but could not be updated - please contact a webmaster" you have to enter this note again. It was not entered, despite what the error message said.
We're very sorry for any inconvenience this may cause.