Thank you for the feedback and bug report! I've put the achievements bug in our queue.
And I'm so sorry about the crash! We're trying to simulate it. It's tough with the itch build because we're still learning the best practices for web builds in particular. I'll send this to our engineers though! Thank you for letting us know. :( :(
If you still have the error code, that would be really helpful.
Oops almost forgot to reply!!
I would gladly give you the error code! It was absolutely huge though, like 6000 characters lol, uhhhh here i put it on a page on my neocities! https://korattata.neocities.org/plinkidlebugreport
If you'd rather me email it to you or something else let me know! XD I personally wouldn't click a random link someone gave me but this is the only thing i could think of because i don't think any message or comment section is going to like a message that long...
:D Good luck with the game btw! ^^ This just means I can play whatever the updates are from scratch!