Hello sachin86nand
Thank you for your post.
Generally, with this type of error, we will be able to identify what the issue is based on the error log which can be seen by clicking on view more error details.
I have linked our Help Article on the somethings gone wrong and AccountRight needs to close error that contains the differing ways to resolve this.
If you have a different message on the error log than what is in the Help Article, please attach a copy of it and I will be able to investigate it further for you.
If my response has answered your inquiry please click "Accept as Solution" to assist other users to find this information.