Getting Error at Enter data in Markbook

[vishalr]

Dear Developer team,

After the Gibbon version update, I am encountering an error when entering data into the markbook. dropdown box is not showing

Filename: markbook_edit_data.php

[sandra]

Please check the markbook column itself to see that attainment is enabled and a grade scale is set, as the drop-down will only show if the markbook has been set up to show attainment or effort.

[vishalr]

Thank you @sandra

After above setting, it is working fine.