Wait for Button to be Clickable

Thank you alot for the Answer, but unfortunately i dont know how many Files are going to be Downloaded, cause the quantity of files are always different, so i need a way to continue after the Download is ready.

So when the Download is Ready, the “weiter” Button changes into “Fertig Stellen”, maybe i could configurate the bot that, when the “fertig Stellen” button is there.

I think i could do this with a do while loop?