SMM Site Backend and API Repairs

My website marketing SMM site is facing several backend and API integration issues that need immediate attention. I'm looking for a fully expert developer who can work on a low to mid budget for a long term collaboration. Key Issues: - Server errors - Database connectivity problems - Performance slowdowns - API integration failures - Security vulnerabilities that may expose sensitive data - Broken API endpoints causing functional issues - Data inconsistency issues affecting user experience - Issues with logging and monitoring server activities - Storage limitations leading to performance slowdowns - Cache mismanagement affecting page load speeds - Need for code refactoring to improve maintainability - Issues with third-party software or service integrations Ideal Skills and Experience: - Extensive knowledge in backend functionality repair - Proficient in resolving server errors and database connectivity issues - Expertise in API integration troubleshooting - Experience with SMM site development or maintenance would be a plus - Ability to deliver quality work within a budget - Commitment to long-term project collaboration The main technology stack used in my SMM site is PHP and MySQL. The first priority is to resolve server errors and database connectivity problems to ensure the system is stable. The first priority is to resolve server errors and database connectivity problems within 1-2 weeks to ensure the system is stable. Please provide detailed documentation for all fixes and changes made. I prefer to stick to the current technology stack of PHP and MySQL to address these issues. Utilize real-time collaboration via chat for continuous updates and feedback. Please provide detailed updates through chat for real-time collaboration and feedback.