it's not the first time I am working with ODKAggregate, but I failed to solve this problem this time. I try and follow many things as per blog and ODK forum said. It's been 70 hours plus I couldn't solve that issue. please find the attached tomcat log file and other related screenshots for your reference.
Please note that Aggregate is no longer being supported and we encourage you to switch to Central. The post below has for more details about the end-of-life for Aggregate.