I have a problem with global configuration on Joomla;
I've worked on local for my Web site and then I've uploaded it on remote;
it seems work perfectly but when I go to global configuration,
it opens a white tab with this error:
"Fatal error: Class 'JModelDatabase' not found in /web/htdocs/mydomain/home/components/com_config/model/cms.php on line 19"
How can I solve it?
Just check that file database.php exists in /web/htdocs/mydomain/home/components/com_config/model/database.php
If it's not then you need to add it. But it is a sign that something wrong with your installation.