Cryptography Key not working on Sites

Hi all … I am Using Cryptography Componenet Using AES-128 to encrupt data with a 128bit key
when I try use the same key I am using in Kodualr on any site to encrupt a link without needing to open Kodular every and Emultor to “Do it” he says the key I am using not 128bit … whilte I generated it with the block koduar have and is working well in Kodular app … so where is the problem ?