I've got an issue when trying to change the status of an order (from pending to complete etc...) in the admin section.
A warning appears saying
the fields are all in red and the continue button doesn't work.Warning: You do not have permission to access the API!
A similar thing happens if I view an order instead and try to add a new status to the order history.
I've seen this problem mentioned a few times in other posts but, afaik, without any satisfactory answer.
I'm using Opencart 220.127.116.11 and I'm logged in as an administrator and the administrator user group has all Access and Modify permissions enabled.
There is the default API user set up in System > Users > API and I also added (and then removed) another one but I was not sure what to do once I had created a new API user with a username and generated password.
The site is not in maintenance mode, I have an EV SSL certificate installed and working fine, Paypal Pro has been set up successfully as the main payment gateway and I only have one extra module installed (Super Mega Menu).
There are no other problems on the site but, despite trying just about all the suggestions in the other forum posts, I can't edit the existing orders from the admin section.