It was a bit of a headache for me too!
You must copy the code above (starting with YU...)
Cick on the "Decode with Base64..." link.
Then paste the code in the first dialog box.
Click on <DECODE>
It generates a new code that must be copied and pasted in the first dialog box to replace the previous one
Click on <DECODE> again and you will have the pixeldrain link.
Thanks to 0xCIRRUS for the music!