SR version 9.3.35+ - mako error on /schedule page... page will not load

I cannot get the schedule page, http://localhost:8081/schedule/, to show after the last dev update:

A mako error has occured.
If this happened during an update a simple page refresh may be the solution.
Mako errors that happen during updates may be a one time error if there were significant ui changes.

                File C:/SiCKRAGE/SiCKRAGE/sickrage/core/webserver/views/schedule.mako:108, in render_content:
                                                    <%

                ValueError:invalid literal for int() with base 10: ''

Edited Jun 22, 2018 by TekGamer