WordPress Site Recovery via FTP

I'm seeking assistance to recover my WordPress website, which is currently showing as "WordPress not installed." The main issue appears to be related to database connection problems. I have not changed any database credentials or settings recently, and I can access the website's database via phpMyAdmin.

Key Requirements:
- Diagnose and resolve database connection issues
- Ensure WordPress installation is recognized and operational
- Verify and correct any potential file or configuration discrepancies via FTP
- Experience with WordPress recovery and troubleshooting

Ideal Skills and Experience:
- Strong knowledge of WordPress architecture and database management
- Proficiency in using FTP for website file management
- Experience with phpMyAdmin and resolving database connection issues
- Ability to troubleshoot and resolve WordPress installation problems efficiently

Please reach out if you have the expertise to help restore my website to full functionality.