`reset();` in Web IDE gives error and makes Bangle.js 2 stuck

I'm trying to follow this tutorial: https://www.espruino.com/Bangle.js+Devel­opment

When I get to reset(); the Web IDE answers with following and Bangle.js 2 is stuck with screen which says just "Reloading...".

>reset();
=undefined
 ____                 _
|  __|___ ___ ___ _ _|_|___ ___
|  __|_ -| . |  _| | | |   | . |
|____|___|  _|_| |___|_|_|_|___|
         |_| espruino.com
 2v11 (c) 2021 G.Williams
Uncaught Error: Function not found!
 at line 13 col 667 in .boot0
...oad('welcome.app.js')})}})()(function­(){var settings=require("Storage"...
                                        ^
at line 1 col 152
...age').read('bootupdate.js')); throw "Storage Updated!"}
                              ^
>

Also Bangle.buzz(); doesn't seem to do anything and Bangle.beep(); makes watch vibrate.