Most likely I'm just an outlier; but I can do a network scan to identify browser page activity when the issue happens on my end. And from replays it appears to crash randomly. If you have no objections, I'll paste it here (ie. I can remove data if it's sensitive for your programe's code.)
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As the game starts, I see the following issue (the text quoted is directly from the browser):
<quote>
A page or script is accessing at least one of navigator.userAgent, navigator.appVersion, and navigator.platform. Starting in Chrome 101, the amount of information available in the User Agent string will be reduced.
To fix this issue, replace the usage of navigator.userAgent, navigator.appVersion, and navigator.platform with feature detection, progressive enhancement, or migrate to navigator.userAgentData.
Note that for performance reasons, only the first access to one of the properties is shown.
AFFECTED RESOURCES
2 sources
jquery.maskMoney.js:1 index.html:1
<endquote>
And in the network, I find the following packet:
<quote>
Request URL: https://cattrigger.itch.io/dr-brain/rp/eyJpZCI6MjI1MjkyOSwibSI6MTY5NzA4NjI3Nywid...
Request Method:
GET
Status Code:
204 No Content
Remote Address:
173.255.250.[xx]:443 (NOTE: address censored)
Referrer Policy: no-referrer-when-downgrade
Connection: keep-alive
Date: Thu, 12 Oct 2023 04:51:21 GMT
Server: lapis
X-Robots-Tag: noindex
Request Headers
Accept:
*/*
Accept-Encoding:
gzip, deflate, br
Accept-Language:
en-US,en;q=0.9
Connection:
keep-alive
Cookie:
itchio_token=WyJOdlVCIiwxNjgyNDcxNzYxLCJmcWE4aTQwZ1BMaEY1UlAiXQ%3d%3d%2eOkOVqvnL2QHdHtzVzA9U4r3qXmI%3d; ref%3aregister%3areferrer=https%3a%2f%2fwww%2eqwant%2ecom%2f; _ga_YDZPBSSQ45=GS1.1.16825...
<endquote>