WPLMS course duration hours issue.

Hi ! i had purchased WPLMS theme , but in course module there is issue related to course duration. when i put course duration 40 hours , its automatically converted in 1 Day 16 Hours.
Please tell me the solution

Please I sincerely request you to check the support section : https://themeforest.net/item/wplms-learning-management-system/6780226/support

All support is provided via http://vibethemes.com/documentation/wplms/

Optionally : You can send me an email at vibethemes@gmail.com with subject “WPLMS Support”.

The response time for support forums is less than 24 hours, for emails is less than 72 hours. Support is off on Sundays.

Solution : Set the Course duration parameter from automatic to hours in WP Admin - WPLMS - Course manager.