Postman

Can someone nudge me in the direction of user?
I’ve got the initial shell as re***. Found the hidden object and cracked it.
When I try to ssh as the user M*** the connection drops instantly.
THen i tried to log into the w***** and it worked, hurray, from here I see that there is a hidden c***** that i can write into, but nothing seems to work.
im at a loss here, any help would be appreciated.
Thanks Sekisback, I should look at what I have and not go so deep lol