Non-numeric value warning

  • On the Grade Boundaries page, after I have assigned grade boundaries to my tests, I get the following warning message:
    “Warning: A non-numeric value encountered in /home3/hmancuso/public_html/wp-content/plugins/quiz-tool-lite/admin/grade_boundaries.php on line 224”.

    How can I solve this problem?

    If it helps, these are the grade boundaries I have assigned for each test:
    0-69
    70-79
    80-85
    86-95
    95-100

    Please let me know whether you need further details. Thanks.

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