I recently downloaded the Membership Pro extension and love it so far. I'm having a bit of trouble getting the fee field working. Every time I toggle it on, following the documentation tips and clicking save, it doesn't save and toggles back off. Please advise on how to fix this issue.
For this, we will have to check it directly on your site. Could you please submit a support ticket sending us super user account of your site and tell us what we need to do to see the error so that we can check it?