Which browser do you use? Can you please try a different one?
Probably this is the reason, but there should be a message informing when you log in.
"Thank you for contacting us.
Yes, unfortunately, the cTrader Copy service can only be accessed on the web and will redirect to the web version.
Moreover, cTrader Copy is not offered/available to Pepperstone clients. We will make an announcement if this ever becomes available.
If there is anything else we can help you with please do not hesitate to let us know. Thank you."
opera is ok.