What's the reason behind this? I don't have any single line of code that gives "Killed" and break venv.

What's the reason behind this? I don't have any single line of code that gives "Killed" and break venv.

It happened again
It doesn't look like a console being killed, rather a process / program is being killed. I'd add some logging to establish at which stage of program exection that happens. If your program tries to connect to external services it may fail due to free accounts internet restrictions, see this help page.
It seems to happen when I hit 1000s of 100s for CPU usage.
But now, the console has been killed and I have 0.00s of 100s. Why? The CPU was running for a few hours. It's impossible for it to be at zero.
The CPU usage counter resets every 24 hours so you have checked soon after the reset.