There was an error in the repository initialization. 'pyside': [|] Valid metadata not found at speci

Hi everybody,

I am a beginner with OpenSuse,

Each time I launch the software manager from YaST I get that message :

There was an error in the repository initialization.
'pyside': [|] Valid metadata not found at specified URL(s)

So i cannot update or install softwares with YaST

I have found similar problems in the forum but i couldn't manage to solve problems

If you can help me thanks !