Thanks Blackstridaaustria for your reply,
I’ve tried everything I could to make it come out properly: pomped till 8 bar (max is 5 bar) and a lot of soap but it didn’t work.
I’m thinking about changing the rim or trying another tire that is similar to the schwalbe big apple,
could you please suggest me some different rims and tires that will work?
Thank you very much for your help anyway.