Having worked extensively as a database administrator and website developer for over five years, I am well-versed in tackling exactly the problem you're currently facing - a critical error in your MySQL. From my home workstation, I ensure 24/7 availability and swift support during such situations. As for your case, I'll quickly dive into your site's backend to identify the specific issue impairing its functionality, utilizing my deep understanding of HTML, MySQL, and PHP.
My approach to bug fixing is highly methodical. First, I'll accurately diagnose the error root-cause to develop an effective plan for rectification. Once identified, I'll use my extensive knowledge of HTML, MySQL and PHP to implement the necessary steps that will fix the problem without compromising any existing data or functionality your site offers. Being a meticulous individual, I'll test every aspect afterward to ensure absolute stability before sharing it with you for final approval.
With my commitment towards quality work and an empathetic approach to your concerns, rest assured that I genuinely care for your site's smooth functionality. Choose me today if you want an experienced freelancer who not just solves problems but provides assurances of long-term robustness and reliability. Looking forward to discussing this project in further detail with you soon!