Voicemail problem

Since upgrading to the latest freepbx i am having problems with my voicemail.
As in… it does not work at all.

When i call an extension with voicemail enabled, it rings, and when it should go to voicemail it disconnects.

Any clue on what might be happening here?

I went trough the log files and did found something strange, dont know if that could be helpful :

[Feb 5 08:08:34] WARNING[14619] app_voicemail.c: mkdir ‘/var/spool/asterisk/voicemail/default//’ failed: No such file or directory
[Feb 5 08:08:34] WARNING[14619] app_voicemail.c: mkdir ‘/var/spool/asterisk/voicemail/default//’ failed: No such file or directory
[Feb 5 08:08:34] WARNING[14619] app_voicemail.c: Failed to make directory (/var/spool/asterisk/voicemail/default/10000/temp)