[Observium] Failed opening required 'Mail/mimePart.php'

Hi All

Erm help please!?

Notifications have been working fine for days then suddenly stopped, and I hate to say it I can’t pin point when i stopped getting them :(

I have found those when running alert_test.php the following errors

PHP Fatal error: require_once(): Failed opening required 'Mail/mimePart.php' (include_path='/opt/observium/libs:.:/usr/share/php') in /opt/observium/libs/pear/Mail/mime.php on line 63

Fatal error: require_once(): Failed opening required 'Mail/mimePart.php' (include_path='/opt/observium/libs:.:/usr/share/php') in /opt/observium/libs/pear/Mail/mime.php on line 63

Any ideas?

I have not changed anything and not even updated the os recently either?

Regards

Simon