Monitor task 'Close QM Planning' was not executed successfully

Dear experts,

In RMWB t-code --> change trail --> monitor Tab page, after 'close trial definition' we are trying to 'close QM planning' but we are getting error :- " Monitor task 'Close QM Planning' was not executed successfully" Message no. RMXTTLS010. Kindly refer the screen shot attached below and provide some solution:-

Regards,

Ninad.