If you add the extension under PMS(FrontDesk) and the extension recieve a voicemail nder PMS and if you try to access the Voicemail reports you will get the below whoops error.
Steps to reproduce.
1. Goto PMS module Config --> Add Room --> Select an extension to add a room and submit.
2. Go to the selected extension and activate voicemail to the extension.
3. Leave an voicemail to the extension.
4. Try to access the voicemail reports.
Whoops \ Exception \ ErrorException (E_WARNING)
file(/var/spool/asterisk/voicemail/default/4003/INBOX/msg0000.txt): failed to open stream: No such file or directory