Query on checksum of plugin-cfg.xml

initially check in plugin-cfg.xml file like
1. virtualhost
2. instead of hostname is there any nodename
3. and context route as well

check the context route, virtualhost and host name(some times chances of node name instead of host name)

Check the below parameters,
1.Check the port & host name entry in plugin-cfg.XML file .
2.check the port no entry in virtual host
3.check the https port as well .
4.check application mapping .