debug
v. B2 Upper Intermediate US //diˈbəɡ// de·bug
v. to find and fix mistakes in a computer program or a machine so it works correctly.
v. to identify and correct errors or flaws in a software application or hardware system.
I spent all afternoon trying to debug the new software.
The developer used a special tool to debug the application and find the source of the crash.
Before the final release, the engineering team spent weeks debugging the firmware to ensure the device would operate reliably under extreme temperatures.
From de- + bug.