Or... I guess you can see the Bangle.js version on the Mac address screen? Which version is it? If the firmware has never been updated then the Bangle could have a similar issue - in which case you'd need to follow the steps at https://www.espruino.com/Bangle.js#firmware-updates
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
The Web IDE/Bangle App Loader should still work if you can connect with the CLI tool. Maybe try it from a different device?
As mentioned, the link at https://www.espruino.com/Troubleshooting+Bangle.js#my-bangle-js-no-longer-boots-to-the-clock should sort you out.
Or... I guess you can see the Bangle.js version on the Mac address screen? Which version is it? If the firmware has never been updated then the Bangle could have a similar issue - in which case you'd need to follow the steps at https://www.espruino.com/Bangle.js#firmware-updates