Hello,
I've been using JoomSEF for quite some time now and everything always went great.
Anyway, today while I was updating to the new version of the extension I got a blank page and was not able to access the admin panel any more, while the website still works perfectly.
Looking at the error log i found this messages:
[07-Mar-2015 11:33:46 Europe/London] PHP Fatal error: Class 'JInstallerSef_Ext' not found in /home/user/public_html/plugins/system/joomsef/joomsef.php on line 155
[07-Mar-2015 11:34:35 Europe/London] PHP Fatal error: Class 'JInstallerSef_Ext' not found in /home/user/public_html/plugins/system/joomsef/joomsef.php on line 155
[07-Mar-2015 11:34:43 Europe/London] PHP Fatal error: Class 'JInstallerSef_Ext' not found in /home/user/public_html/plugins/system/joomsef/joomsef.php on line 155
[07-Mar-2015 11:38:20 Europe/London] PHP Fatal error: Class 'JInstallerSef_Ext' not found in /home/user/public_html/plugins/system/joomsef/joomsef.php on line 155
[07-Mar-2015 11:47:59 Europe/London] PHP Fatal error: Class 'JInstallerSef_Ext' not found in /home/user/public_html/plugins/system/joomsef/joomsef.php on line 155
[07-Mar-2015 11:48:00 Europe/London] PHP Fatal error: Class 'JInstallerSef_Ext' not found in /home/user/public_html/plugins/system/joomsef/joomsef.php on line 155
Thanks in advance for any help you can provide.