Failed to take screenshot: /bin/sh: scrot: command not found

The docker runs successfully.

% docker run \
-e ANTHROPIC_API_KEY=$ANTHROPIC_API_KEY \
-v $HOME/.anthropic:/home/computeruse/.anthropic \
-p 5900:5900 \
-p 8501:8501 \
-p 6080:6080 \
-p 8080:8080 \
-it ghcr.io/anthropics/anthropic-quickstarts:computer-use-demo-latest
Xvfb started successfully on display :1
Xvfb PID: 9
starting tint2 on display :1 ...
starting mutter
starting vnc
PORT=5900
starting noVNC
noVNC started successfully
✨ Computer Use Demo is ready!
➡️ Open http://localhost:8080 in your browser to begin

But, from localhost:8080. when try with any query, it shows

Failed to take screenshot: /bin/sh: scrot: command not found