First try with rubber fixing.
I tried to clean the surface first with isopropyl alcohol, without being able to remove any kind of significant glue.

Tried out to apply new rubber sealant after it dried.

It worked for most of it except the edges of the rubber that were curling. Applied pressure but rolls didn't seemed to help. I ended up putting more glue but spread it all over because of the roll 🤦🏻‍♂️

Well. At the end it's fixed and sealed. But not pretty at all ☠️ I'm not happy about lt.