sometimes Openvox not Hangup the calls

Hello friends to openvox

In the last days it is presenting a very strange problem, sometimes without reason on the Asterisk CLI message that makes me worry . The message is as follows .

Remote host can't match request CANCEL to call '[email protected]:5060'. Giving up.

This is normal?
Thanks

Dear cesargdmi:
Please add me to your skype contact list and prepare remote access, I will help you to figure it out.
My skype is along.zou, named Michael

Hello Michael, Thanks for you asistant, Right now I just did a factory reset and update all Openvox to version 2.11, if the problem persists I will write to your Skype, proves the day of going to see if the problem persists,

best regards

Hello Michael, The problem persist, then only solution for me for now is rollback to 2.0.9 I await via Skype for contact you

Thanks