Cannot connect to marketplace and cannot instal add ons

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Hi,

I am working on a new site and I have not been able to connect it to marketplace. The error message is the you site token must be 64 charakters
I found a lot of threads for this but no fix

I then wanted to add my purchased add ons manually, I followed the instructions given by Franz, but the add ons never show up in dashboard.

I would really really like to build my site with c5, actually I already have the site finished on a free server, all css customized and everything works really great there, but not on the official site.
Can someone please help me?

rritz