Responses - When staff user tries to endorse/undorse a learner response got the unexpected error message on the screen # [mysql]

[Faisalarbisoft]

when Staff user tries to endorse/undorse a learner response against any discussion post response getting unexpected error message on the screen.

How to reproduce:

• Login with staff user and then navigates to any discussion post response. Click on endorse button.
• Login with staff user and then navigates to any already endorse discussion post response. Click on unendorse button.

[rehmansheikh222]

This issue is only reproduced in Openedx demo course, I have tested this with multiple other courses and this behaviour is not reproduced.

[taimoor-ahmed-1]

We can reopen issue if it persists