My site shows a blank white screen, how do you fix that?

A white screen of death (WSOD) is almost always a fatal PHP error being hidden from the browser, we turn on safe logging, read the real error, and fix it. Common causes: a WooCommerce/WordPress Fatal error: Allowed memory size exhausted or a plugin conflict after an update; a Magento Class … does not exist or broken DI after compile. We isolate the offending code, roll it back or patch it, and verify the page renders. The deeper playbook lives on Magento white screen fix. If your store also needs ongoing performance hardening, our Magento performance optimization service picks up where the emergency fix ends.