I think I have found the reason.
Firstly, the method proposed by VxJasonxV is very smart!
“Log in. (even if it does glitch, just log in)
Go back to your homepage and refresh (+clear cache but not cookies).
Click on any edit post button.”
I follow the steps, and really go into the dashboard. In the dashboard, I can post, admin or anything else, except opening the index.php, which is just the page after logged in. So the problem is the index.php file! But I can’t solve it. Who can help us???
