Our PHP-based admin panel has suddenly become unreliable inside the User Management area. I can no longer add, edit, or delete users, role and permission assignments fail to save, and the user lists sometimes come up blank. I haven’t caught any clear error messages yet, so you’ll need to trace the problem directly in the code or logs. What I need from you is a quick, surgical repair: locate the root cause, patch the broken functions, and confirm that all three actions—create/update/delete users, assign roles correctly, and display user data—work again without introducing new issues elsewhere. You will have SSH/FTP access to the server, the Git repo, and a staging database to test against. Once everything is stable on staging, I’ll roll it to production. Please be comfortable diving into legacy PHP, typical MVC structure, MySQL, and JavaScript-driven form validation. If debugging uncovers something larger, flag it and we can scope a follow-up, but the immediate goal is to restore full User Management functionality today.