I am unable to replicate this issue on my test setup, refer:
http://prntscr.com/dk1uq7
Please make sure your theme and plugins are updated to latest versions.
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Thanks for sharing the credentials I checked your website and found out that you have not connected any product to any of your courses.
You need to connect woocommerce product to the course and course to product then only the link will be generated properly.
I connected the product to the course, but the link still insists in not being gererated
http://prntscr.com/dki4ee
http://prntscr.com/dki41d
This is a free product, so I thought there was no need to connect a product. And though it's free, students have to apply for course to subscribe
Product:
http://prntscr.com/dki5mp
If its a free course then you don't have to connect any product to the course, the free courses automatically gets renewed by clicking on the button. On clicking on the button it should redirect you to the course page with a start course button.
I checked your website. The issue was you have enabled apply for course setting in course pricing section. I disbaled it and now it will work fine.
Please check and confirm.
Well, actually, it is sending me to a checkout page. Although the course is free, we set the Apply for Course option intentionally. It is part of an offer, you see. The user has to do things like like our page on facebook, for example, then apply for course. Then, we check if the user did that and, if so, we approve his subscription without costs.
Well its sending you to the checkout page because you have connected a product to it.
Please make sure of the following:
1) If its a free course then do not connect any product to the course.
2) Right now if you enable apply for course feature then the renew button won't work.