Surely many of you takes Cydia to boot and shows you results in the error you see in the picture above.
It is wrong because ultrasn0w is not available in the repo, and that its leaders decided not to support it because of the legal problems they had with him.
So as not useful directly, to prevent discharge of the mistake, we will remove the repo.
The way is very simple;
Enter Cydia.
Go to "manage".
"Sources".
After that, we will make Cydia load faster and not show us any error.