Today, after an upgrade to 2.0.14, I got an error like this:
Error #0:
exception 'Exception' with message 'Failed to open file 'js/omv/form/field/CertificateComboBox.js'' in /usr/share/php/openmediavault/htmlpage.inc:46
Stack trace:
#0 /usr/share/php/openmediavault/htmlpage.inc(72): OMVHtmlPageAbstract->scanFiles('js/omv/form/fie...', Array)
#1 /usr/share/php/openmediavault/htmlpage.inc(91): OMVHtmlPageAbstract->scanFiles('js/omv/module/a...', Array)
#2 /usr/share/php/openmediavault/htmlpage.inc(96): OMVHtmlPageAbstract->scanDir('js/omv/module/a...', Array, true)
#3 /usr/share/php/openmediavault/htmlpage.inc(96): OMVHtmlPageAbstract->scanDir('js/omv/module/a...', Array, true)
#4 /usr/share/php/openmediavault/htmlpage.inc(277): OMVHtmlPageAbstract->scanDir('js/omv/module/a...', Array, true)
#5 /usr/share/php/openmediavault/htmlpage.inc(173): OMVWebGui->getJavascriptIncludes()
#6 /var/www/openmediavault/index.php(36): OMVHtmlPageAbstract->render()
#7 {main}