Hello All, i am trying the version 4 on CentOS 6.6. So far its everything working fine, but when any customer access to the customer portal and try to change the password the OTRS gives me an 500 Error Internal Server Error. This is the error on the log: [Mon Sep 21 23:34:58 2015] [error] [client 195.112.214.172] Can't locate object method "new" via package "Kernel::System::CustomerAuth" (perhaps you forgot to load "Kernel::System::CustomerAuth"?) at /opt/supportOTRS/bin/cgi-bin/../../Kernel/Output/HTML/PreferencesPassword.pm line 105., referer: https://support.i2cinc.com/otrs/customer.pl?Action=CustomerPreferences [Mon Sep 21 23:34:58 2015] [error] [client 195.112.214.172] Premature end of script headers: customer.pl, referer: https://support.i2cinc.com/otrs/customer.pl?Action=CustomerPreferences [Mon Sep 21 23:35:03 2015] [error] [client 195.112.214.172] Can't locate object method "new" via package "Kernel::System::CustomerAuth" (perhaps you forgot to load "Kernel::System::CustomerAuth"?) at /opt/supportOTRS/bin/cgi-bin/../../Kernel/Output/HTML/PreferencesPassword.pm line 105., referer: https://support.i2cinc.com/otrs/customer.pl?Action=CustomerPreferences [Mon Sep 21 23:35:03 2015] [error] [client 195.112.214.172] Premature end of script headers: customer.pl, referer: https://support.i2cinc.com/otrs/customer.pl?Action=CustomerPreferences [Mon Sep 21 23:35:05 2015] [error] [client 195.112.214.172] File does not exist: /opt/supportOTRS/var/httpd/htdocs/skins/Customer/default/img/login2.jpg, referer: https://support.i2cinc.com/otrs/customer.pl?Action=CustomerPreferences Error Message: Please help me to fix this problem Regards Ali Umair