The third-party Moodle themes currently supported by Turnitin are Boost, Clean, More, and Classic.
Please ensure that your Moodle Learning Management System is using one of the above-mentioned supported themes. The use of any other theme is not supported by Turnitin and may cause unexpected behavior.
Note: If you are unsure of the theme in use, please contact your Moodle site administrator, who should be able to assist you with this.