I’m trying to install a custom PHP module in Perfex CRM and, on the very first attempt to activate it, the system throws the classic “No valid module” message. The code hasn’t been edited or tweaked—this is literally first-time use—so the problem is somewhere inside the package itself. I need someone who knows Perfex’s module structure inside out to open up the folder, comb through the PHP classes, controllers, helpers, and JSON/manifest entries, then pinpoint why Perfex refuses to recognise it as valid. Typical culprits are namespace mismatches, missing module JSON keys, or files that don’t follow Perfex’s autoload conventions, but I’d like a systematic review rather than guesswork. Deliverables • A concise report (or commented commit) showing what was wrong and why Perfex rejected the module during activation. • Clean, working code that installs and activates without triggering the error, ready for me to drop into the modules directory and enable from the admin panel. • A brief note on any compatibility considerations so I can update safely after future core upgrades. If you’ve debugged Perfex modules before, this should be a quick, focused job.