My site ‑ https://awstrainingwithjagan.com – has suddenly stopped loading its posts page. The error message points to an outdated, deprecated plugin that the system now wants me to upgrade, yet I’m not sure which one it is. Key points you should know • I have NOT installed or updated any other plugins recently, so the culprit is likely an older core or third-party add-on that finally broke after a WordPress update. • The site runs on a custom theme, so any fix must respect the existing theme structure and styling. What I need from you 1. Rapid diagnosis of the specific plugin (or set of plugins) causing the crash. 2. Safe removal, update, or replacement of that plugin without breaking current functionality or design. 3. Permanent, future-proof solution—code tweaks, recommended alternatives, or configuration changes—that prevents the error from resurfacing after the next WordPress release. 4. Final confirmation that all pages, including /blog and /post URLs, load correctly and the admin dashboard remains fully accessible. Please be comfortable with WordPress core debugging, PHP error logs, and custom-theme compatibility testing. If you can jump in quickly and leave the site stable,