Error 500 on own created course

Whenever I try to complete my own course “RHS Seeds”, I get the message “An error with code 500 occurred” about 3 or 4 words in.

  • Chrome is up to date on my device
  • I’ve attempted my course before and after clearing cookies & cache and had the same error
  • I’ve disabled all extensions and had the same error
  • I’ve tried the course on different devices and had the same error
  • It typically shows the error right after teaching “Brassica oleracea var. botrytis” or “Cucurbita pepo”, which are the 3rd and 4th “words” in the course/level