Moving wordpress to root folder = internal server error

You should look at the Codex (a great place to find answers) for information about moving a WordPress site. See https://codex.wordpress.org/Moving_WordPress . Follow those steps. You’ll find (among your tasks) that you need to change the two URL entries in the wp-options table (which you already discovered), and then do a search/replace to change the … Read more

Can`t Access Post Page After Migration

Deactivate all your plugins and themes reactivate the theme and the required plugins of the theme; check if you have no bugs if no errors reactivate the other plugins one by one and check if there are no errors. You can also follow this https://www.wpbeginner.com/wp-tutorials/how-to-find-and-access-wordpress-error-logs-step-by-step/ and share your logs