App is not working

[TheCoderAS]

``> [email protected] start

node server.js

App listening on port 3000
Request for joining meet https://meet.google.com/igt-kdtj-bgm
Request for leaving meet https://meet.google.com/igt-kdtj-bgm
/home/aaloks/Desktop/Meet-Scheduler/Google-Meet-Scheduler/google-meet.js:88
await this.browser.close();
^

TypeError: Cannot read property 'close' of undefined
at GoogleMeet.end (/home/aaloks/Desktop/Meet-Scheduler/Google-Meet-Scheduler/google-meet.js:88:28)
at Timeout._onTimeout (/home/aaloks/Desktop/Meet-Scheduler/Google-Meet-Scheduler/server.js:52:21)
at listOnTimeout (node:internal/timers:557:17)
at processTimers (node:internal/timers:500:7)