Answer|Solution:
The problem was caused by these missing constants in the wp-config.php file > DB_CHARSET and DB_COLLATE.
/** Database Charset to use in creating database tables. */
define('DB_CHARSET', 'utf8');
/** The Database Collate type. Don't change this if in doubt. */
define('DB_COLLATE', '');
Solution:
Delete the BPS Pro plugin on the WordPress Plugins page.
Delete the BPS Pro backup folder using FTP or web host control panel > /wp-content/bps-backup/
Add the DB_CHARSET and DB_COLLATE code shown above in the wp-config.php file.
Install the BPS Pro zip file using the WordPress Plugins Upload zip installer.
Run the Pre-Installation and Setup Wizard.
Additional Notes:
These php errors were generated when running the BPS Pro Setup Wizard.
PHP Fatal error: Cannot redeclare bpsPro_AP_Check()…
WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ” at line 9 for query CREATE TABLE wp_bpspro_arq_quarantine