Fatal error: Uncaught Error: The script tried to modify a property on an incomplete object

Here are a couple things you can try:
Increase Memory Limit: Sometimes, PHP memory limit issues can cause such errors. Try increasing the memory limit by adding define(‘WP_MEMORY_LIMIT’, ‘256M’); to your wp-config.php file.

Check WooCommerce Status: Go to WooCommerce > Status in your WordPress admin to see if there are any alerts or recommendations.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)