Get this error sometimes when a peer doesn't respond

[Gronis]

What version of this package are you using?
9.15.0
What operating system, Node.js, and npm version?
14.15.1
What happened?
The following exception is raised:

node_modules/bittorrent-tracker/lib/client/websocket-tracker.js:380
        delete self.peers[offerId]
^
TypeError: Cannot convert undefined or null to object
    at Timeout._onTimeout (/Users/robin/git/webpeer/wps/build/webpack:/wps/node_modules/bittorrent-tracker/lib/client/websocket-tracker.js:380:1)
    at listOnTimeout (internal/timers.js:554:17)
    at processTimers (internal/timers.js:497:7)

It seams that self.peers is set to null.
After browsing the bittorrent-tracker code, I don't really understand why it is set to null though.
What did you expect to happen?
The peer is disconnected without exception.
Are you willing to submit a pull request to fix this bug?
Sure

[github-actions]

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?