Broken WordPress installation after migration to Plesk via Site Import: it does not seem that this WordPress website is working

Symptoms

• The WordPress Instance is marked as broken in Domains > example.com > WordPress after migration using Site Import extension from Windows to Linux server:

  PLESK_INFO: Broken WordPress installation
  WordPress Toolkit has found WordPress files at the following path:
  
  /var/www/vhosts/example.com/httpdocs
  
  However, it does not seem that this WordPress website is working. Try restoring the website from a backup or cleaning up the redundant files. 

• Error details is showing the following message:

  PLESK_INFO: Error: The site you have requested is not installed. Your table prefix is 'ABCdfg_'. Found installation with table prefix: abcdfg_. Or, run `wp core install` to create database tables.

Cause

Case sensitivity of the created database table prefix.

Resolution

Change the $table_prefix to the actual table prefix of the tables abcdfg_ in the wp-config.php file:

1. Log in to Plesk.

2. Go to Domains > example.com > WordPress > root directory and open the wp-config.php file.

3. Change $table_prefix to actual tables prefix and save the changes:

   CONFIG_TEXT: $table_prefix = 'abcdfg_';

4. Go to Domains > example.com > WordPress tab > Open WordPress Toolkit and refresh the instance: