/etc/pandora/pandora_server.conf file and check
*_threads you are using. If you are using more than 40-50 threads then probably your machine will not be able to manage so many threads. Try to reduce them. One single thread is enough to manage about 100/200 modules for each server, probably more, depending on your configuration and your machine hardware.
When I start the server I get the message “segmentation failure” and the server stops working