Failed to process imported issues

Hello friends,
We are implementing a Data Quality Issue tracker for one of our failed rules. As instructed, we have updated the config.xml, workflows.xml, and metadata.xml file at the DQIT folder. Moreover we have made sure that the Apache database is up and running. But execution of the plan generate Importing error.

I am trying to understand what does this error explicitly mean?Which connection is being refused here? Help is greatly appreciated. thanks

Please see the figure attached.dqit_connection_error

Hello Jayant,

Could you please send me the whole error message? Also, please confirm that the issue appears when you try to execute an issue import plan?