Hi @m.arif 
 

This similar post will help you

Business Reporter error while login in UPD7 | IFS Community

Normally "Object reference not set to an instance of an object" is a common error raised due to many reasons. So difficult to assume what is the exact cause without doing a proper technical Investigation. So Its better please log a case to IFS support.

There are few R&D bug fixes for this error in BR.

Ex : 159749 , 151656

If you receive same error when following below steps R&D bug fix 151656 will resolve the error.

Steps :

• Open the BA client Admin Gateway through Shift+A+D
• Give the URL
• Don't tick the Use Single-Sign-On tick box
• Login with username and password

Otherwise please log a case to IFS Support for further investigation.

-Kelum

Hi,

It seems the report is published using a different version of Business Reporter version than you are using. 

Try to republish the report check the issue. 

To republish the report: 

1. Login as a user who has BR Designer privilege
2. In design mode, select Download and Validate option.
3. Select the report and click Download button 
4. Select a folder to save the report

5. 

    Go to the Bulk Save and Republish Reports tab of same dialog
6. Select the folder you have provided in step 4
7. Select the report and click Save/Publish

8. 

    

Thanks @Voshitha  this technique helped.