Follow the steps below to resolve.

Will need to be logged in as, or impersonating, the teacher.

1. Navigate to the Gradebook.
2. Click the Edit Setup button.
3. Select a numeric grade scale from the dropdown next to each assignment type, or leave the dropdown blank.
4. Repeat for each assignment type.
5. Click Save & Close.

For more information on reviewing the Grading Scales and setting up a Numeric Grade Scale please refer to How to setup a Letter Grade Scale