Setting up website management (CMS Yii) on Bluehost hosting

It is required to configure the management of the site on foreign hosting - the work of the admin panel, the display in the browser. The site is uploaded to the hosting, deployed and partially configured. The main problems are recurring errors in the work of modules/libraries such as fileinfo, responsible for processing image previews, general work with the WHM control panel.

- CMS of the site – Yii

- Bluehost hosting name and address: https://my.bluehost.com/