FYI I also had an issue with the calendar showing up. Needed to edit scheduler.php, all instances of the following:
href=\"wp-content
needed to be changed to my site path,
href=\"https://www.mysite.com/wp-content
(this should really use the ABSPATH variable though)
(as should the following)
src=\"wp-content
needed to be changed to my site path,
src=\"https://www.mysite.com/wp-content
Not sure what was going on there but since I put the scheduler call in a 2nd level page, it wasn’t working (couldn’t find the required files).
Hope that helps somebody.