WordPress developer needed to clear critical error on wordpress website immediately

I’m looking for an experienced WordPress Developer who can help me resolve a critical error on my WordPress website immediately. I recently received an email notification about a WordPress version update for my website. When I went to check the website afterward, I discovered that I could no longer access it properly and I’m now seeing a message saying, “There has been a critical error on this website.” I’m not sure exactly what caused the issue. It could be related to the WordPress update, a plugin or theme conflict, PHP compatibility, or another issue. I need someone who can investigate the problem, identify the root cause, and get the website back up and running safely. What I need: * Diagnose the cause of the critical error * Check WordPress, plugins, theme, and PHP compatibility * Determine whether the WordPress update is related to the problem * Restore access to the website and WordPress dashboard * Fix any plugin, theme, or PHP conflicts causing the error * Make sure the website is functioning properly after the fix * Confirm that the existing content and functionality have not been affected This is an urgent issue, so I’m looking for someone who can start immediately and handle the troubleshooting carefully. Please apply if you have solid experience with WordPress critical errors, WordPress updates, PHP compatibility issues, and plugin/theme conflicts. Once the issue is resolved, I’d also appreciate a brief explanation of what caused the error and what was done to fix it.