Unable to login through Web console after start upgrade from 8.0 to 8.1

[Faizan Siddiuqi 1]

Hello,  I am unable to login through the web console after upgrade  from 8.0 to 8.1. when i push upgrade through web console its not yet back.

 

SEVERE: [] Connection closing because of ERA server communication error: Connection refused
Oct 04 14:41:51 server[44623]: Oct 04, 2021 2:41:51 PM sk.eset.era.g2webconsole.server.modules.logger.EventLogItem logInto.

 

 

I have checked ERA server services but not found, Apache tomcat and Sqldb are running.. 

 

please provide solution