Hello Indunil,
Thank you so much for your honest feedback, we really appreciate it and I’m sorry to hear that you’re still struggling with this issue.
Unfortunately (or fortunately, depending on how you look at it ??) it’s not a theme related issue, but we’re still happy to help.
You’re right that the screenshot you attempted to upload is not working, if you’re able to add that here we would love to take a look!
If you’re unable to find your edit button, you can also just go to the Posts page from your WordPress dashboard and click on the title of the post- this also opens the editing screen.
We do appreciate your honesty about your regretting using our theme, we’re sorry to hear this but we do agree that it’s probably best that you don’t order the Pro version.
Wishing you the very best with your site! Take care friend!