Problem in connecting to remote db

@aravindhrs thanks for quick reponse. I followed this link Features to try out different options, but my bad.
I tried out Automatic Mixed Mode

  <property name="url" value="jdbc:h2:tcp://localhost:10990/mem:mydb;AUTO_SERVER=TRUE" />

my h2 db running on port 10090.

For standalone deployment I followed this link Install the Standalone Webapplication (.war) | docs.camunda.org

did i missing any basics here? I think this should be straight forward… please help me out.

Also,I observing the same error all the time when I make changes to the URL