Why am I seeing a “500 Internal Server Error” after updating a WordPress plugin?

Fatal 500 errors point to code crashes, usually triggered by severe script conflicts between a newly updated plugin and your server’s current backend engine version, or corrupted code components.

“This tends to crop up when a freshly updated plugin conflicts with your server’s current PHP version. I’ll isolate the conflict and have your site back up within 24 hours for $99.”
— Jeff Bollettino, Managing Director, Ignite Conversions