Open Cart Errors Fix

My Open Cart website is experiencing backend and frontend errors, including fatal errors in the backend and occasional white screens on the front end. These backend issues are occurring randomly, and the site has been experiencing this problem since server settings were changed.

Ideal Skills and Experience:
- Expertise in OpenCart
- Experience troubleshooting server-related issues
- Ability to resolve frontend and backend errors
- Knowledgeable about website server settings and their impact on website functionality