Greenscreen & distorted sound from my Gamecube

Hello there!

My gamecube console is having a severe problem in loading up games properly and playing sound.

All the sound, from the startup music to menu sounds, are all heavily distorted and buzzing. On top of that, most games are not being loaded. Metroid Prime 2 just stays dark after the red Nintendo logo. But Pokemon colosseum freezes with a green screen (more flickerish green).

I recorded the problem:

https://drive.google.com/file/d/1lAGaKJ1...

Might anyone have an idea on how to fix this?

Thanks!

Jason

Fyi: I formerly had problems with the lens but I adjusted the resistance of the laser so that it again could read discs.