Hello, Nag1.
Thanks for reaching out here in the Community with your question about the P&L report. I'd be glad to provide some insight on this issue.
The "Something went wrong error" with the Profit and Loss report is currently being reviewed and worked on by the Engineering Team. I recommend calling in to speak with an agent so you can be added to the open case regarding this problem. You may also want to advise them that this is most likely related to investigation #13539. The number to speak with an agent is 1-800-488-7330. The most up-to-date contact information can be found here: https://help.quickbooks.intuit.com/en_US/contact. Once you've been added to the list of affected companies, you'll then receive email notifications regarding the solution.
Feel free to leave a comment and let me know how the conversation goes. I'll be around if you have any other questions.