Kindle PW3 5.9.6.1 ssh broken pipe leaves broken ssh

Hi I have jailbroken my kindle pw 3 on 5.9.6.1 and set it up with usb network extension
after successful connection, i started exploring and delete some files by "cat"ing them that are left by Calibre and other tools years ago.

But after using cat on some really big files, and possibly contains other than ascii characters,
my terminal prompt says "broken pipe" then disconnected from my kindle.

Ever since then each time I try to connect to my kindle I will see the banner but a blank terminal that cannot be ctrl-c or ctrl-d ctrl-z completely unresponsive

I have tried upgrading from 5.9.4 to 5.9.6.1 and reinstalling by flagging complete

image: https://imgur.com/a/bxZXidu
ssh-log: https://pastebin.com/f2XgJtEY

:help:
Any form of help is appreciated at this point.