Good morning!
It is ok if your collection folder is empty, since the file collection is a Pandora FMS Enterprise feature. ;)
First of all, check you have installed all the necessary dependencies for your Server and Console.
Also, it might be great if you could attach some screenshots or additional info regarding the modules you're trying to add.
If everything is correct, please check these tips in order:
1) Edit /etc/pandora/pandora_server.conf and activate verbosity with level 10.
And again, restart the server.
Then check the logs once you try to create a module which doesn't initialize in /var/log/pandora_server.log and /var/log/pandora_server.error.
2) Check /var/spool/pandora/data_in in your server and look for any BADXML file.
If any, type this in your term:
xmllint <BADXML file path>
And search about the problem.
3) If all of the above are ok, edit your pandora_agent.conf and uncomment the "debug 1" line. Make sure the agents are aiming to the right IP and that the Tentacle port is open in your network configuration (41121 TCP).
Restart your pandora_agent.conf, then look in ../pandora_agent/temp/ for the XML data generated by the agent.
4) If you have found the XML data, stop your Pandora Server (/etc/init.d/pandora_server stop), comment the debug 1 line in your pandora_agent.conf and restart the agent.
Then, look for the XML data file in /var/spool/pandora/data_in.
If you don't find anything, it means there's a problem with the connectivity between agent and server. (Tentacle port closed, problem with Tentacle Client or Server...)
5) If you've arrived here and everything's ok, it must be:
a) A connectivity problem between Pandora Server and the DB.
b) A connectivity problem between Pandora Console and the DB.
6) Check if your /etc/pandora/pandora_server.conf has the same "dbpass" field as the one contained in /../../pandora_console/include/config.php. If they are different, please verify which password is correct by writing in your term:
mysql -upandora -p
Enter password: <password>
Then copy the right one and paste it on the other one.
Make a /etc/init.d/pandora_server restart
Regards.