Well okay... no idea what happened in your playthrough but I had no issues saving in the cafe.
Anyway, this is your save file inside the cafe after the sequence with Ivie. https://cherryshare.at/f/gKPuEp
I'm gonna take the link down once you have it.
I did find another issue though that is fixed in the latest version but still present in yours.
There is one last save room in a big area (if you played all the way to the wire room you'll know which one)
and if you enter it from a specific spot in a dark hallway, it won't let you save your game even if you light
the candle. Maybe that happened to you? If it does, try to enter the save room from a different spot (just one step below or
from the opposite hallway) and you should be able to save again. As I said, it should be fixed in the new version.
I hope you'll enjoy that last part of the game!