Hi,
I can troubleshoot the problems you have.
I have great experience with PLESK, Apache, Nginx, PHP, HTML and Wordpress/Woocommerce and Centos 7.
Lets discuss the details in private chat.
My main specialization is LAMP stack of technologies (Linux, Apache, MySQL, PHP) but also I have good experience with Python, Node.js and .NET stack of technologies too. I have a deep experience with different PHP Frameworks such as Zend Framework, Symfony, Laravel, Yii, CodeIgniter, CakePHP as well as different open source solutions e.g. Magento Ecommerce platform, WordPress, Drupal, etc.
Feel free to contact me.