Stories are not getting burnt and getting spilled over to next sprint each time .
The Stories are marked to Status as "Ready for Release" , Resolution as "Done"., Still the User stories are getting spilled over .
This might have to go to Atlassian as @Bastian Stehmann says, but there's a bit more debugging I'd like to look at first.
Tell us what type of project it is (company managed or team managed)
Confirm the swimlane settings - it looks like you might be doing swimlanes by Epic, but I can't be 100% sure
Give us a screenshot with a bit more info in it. Not the issues, your screenshot from earlier was just what we needed, but I'd like to see the headers of the board too. For example:
Basically the section from "Active sprints" across to ... and then down to the column names, don't need to see issues