I tried to improve my program for the Ceasar Cipher, but something isnt right

Question

Like mentioned above, i tried to improve my program for the Caesar Cipher. The improvement is to convert more characters and lower case letters. The Problem: The encryption works as well as before the changes, but in the decryption, the space (" ") is displayed as "A", can someone help me find my mistake?
original code:
https://code.sololearn.com/cXLSIVPtTkbp/?ref=app
"improved" Code:
https://code.sololearn.com/ccuZEGkjD6Uh/?ref=app

Answer 1

I suggest you give us the exact input you used and the output you expected so we don't have to figure out what you used to cause the bug.