Welcome,
Please check these lines in your server config file, located in /etc/pandora/pandora_server.conf by default:
# Database credentials. A VERY important configuration.
# This must be the same credentials used by your Pandora FMS Console
# but could be different if your console is not running in the same
# host than the server. Check your console setup in /include/config.php
# dbname: Database name (pandora by default
dbname pandora
# dbuser: Database user name (pandora by default)
dbuser pandora
# dbpass: Database password
dbpass yourpass
# dbhost: Database hostname or IP address
dbhost yourhost
Compare this pass with the pass included in /srv/www/htdocs/pandora/include/config.php (this is the absolute path of /include/config.php by default in openSuSE)
If they're not the same, replace the pass in the pandora_server.conf with the one in /include/config.php
Else, also check you are using the right address for your database (if your pandora database and your pandora server are located in the same machine, dbhost should be localhost)
If your problem persists, please activate verbosity 10 option (located right below the code I've just posted) so you can get a fully detailed log of these errors.
Attach these logs and provide us with additional info regarding your problem, so we can diagnose your problem more efficiently.
Feel free to add screenshots as well, as long as your remove all the sensitive and personal information you don't want to show.
Greetings.