When adding a TEXT or ARTICLE to the lessons they are not visible from the frontend, unless they are tagged as video.
STEPS TO REPLICATE:
1 Create a Text or Article Media File
2 Create a Lesson
3 Make a Lesson link to the Text or Article File
4 Navigate to this lesson on the frontend
RESULT - A black screen
EXPECTED RESULT The text or article on the page
Thank you for contacting us and reporting this issue.
I'm sorry to hear that you have issues using our product.
I was able to replicate the issue on your site.
I assign developer for further investigation.
He'll contact you ASAP.
I apologize for delay.
This issue is specific to your site.
I tested it on my dev site and text is displayed fine: i.prntscr.com/669be1a0c15043f19c90b22e27fb54ae.png
We still investigate cause of this issue.
Indeed there was a bug in the current Guru version and that took a bit of time to revise and fix. I just installed you a new version which will be released soon, this version fix that bug and some others too.
Sorry it took so long but all should be ok now :) please enjoy!
What you need to do is to download new Guru package and install on your site. Latest package contain these modifications and other bug fixes.
If you are worry about installing directly on live site, then you can do one more test by installing on your dev. Then, you can check and if all is ok you can go live with it. At install, all existing data will be kept and only component files will be overwritten.