How do I resolve a “Critical Error on Your Website” screen in WordPress?

The critical error screen is WordPress’s automated safety safeguard for fatal code breakdowns, caused by database compilation issues, exhausted server memory thresholds, or script crashes.

“Most minor website breaks are caused by simple script conflicts, legacy code blocks, or broken API handshakes. We identify and clear these issues immediately as a straightforward, one-time fix.”
— Jeff Bollettino, Managing Director, Ignite Conversions