Act is not correctly installed

After executing the command gitbug-java checkout BID WORK_DIR, when I run gitbug-java run WORKDIR, it shows the error "Act is not correctly installed." I have reinstalled the act-cache.zip from the setup, but the error still occurs. How should I resolve this?

Did you run export PATH="$(pwd):$(pwd)/bin:$PATH" before running the cli tool?

I had not run it before. I just ran it in the command line, but it still shows the error: "Act is not correctly installed."