OpcodesInTheDebugger step 5 can't be done

[elshigori]

on step "5 Debugger and CODECOPY" when user put a break-point and select Jump to the next break-point in the debugger he only receives a warning/error message from the debugger

Source location not available, neither in Sourcify nor in Etherscan. Please make sure the Etherscan api key is provided in the settings.

Looks like either instructions of the tutorial should be updated, either its design.