Discuss option not working in project

Summary

Discuss option available in volunteering projects is not working and giving an java null pointer exception error

Content

Employees, Managers or Admins can views the Projects created or available for them to Volunteer. There is an option available to all users of "Discuss" where they can discuss about the project details or can convey some information to their peers or volunteers about the projects.

But as soon as the user clicks on the "Discuss" option, an error is encountered stating incident log error.

Please suggest a solution for its resolution.

Version

20D