You could very well be entering your password incorrectly.
That may happen if server does not answer and conection times out. Maybe some kind of firewall...
Can you see saves? If not check if a firewall is blocking something.
You tried re-downloading?
To get stamps files go to TPT folder and then enter Stamps folder and copy it... so if somehing happens during the proccess your stamps are alive.
Ok I do believe that the computer has a firewall that blocks some commands, but I cannot change them as it is not my computer, and the password is correct. My plan was to find the stamp in a file, and copy it onto a flash drive, but I could not find where they were saved. When I ry to log in, the game freezes up, and closes shortly after and I do have the latest version of the game. Where could I find the Stamps folder on a windows computer, if you know, please give me instruction on how to find it. Thanks for replying.
Asuming you use windows:
1. Go to configuration (where you can choose fullscreen) and put open data folder.
2.a. If a command prompt pop ups write the C:/USERNAME/*/*> in a paper/notepad/etc
3.b. Go to explorer and access that place then copy the Stamps direcotry
2.b If Explorer pops up copy the Stamps direcotry