I am getting the error that others experienced. Says Deezer is in listening mode on another device. It is not. My iPhone 12 (iOS versions 15.6.1) is the only linked device in the list. I have just changed my password and got the error again.
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Hi
I'm sorry to hear that 
I've already unlinked all possible connected devices from your account. Also I've sent you an email with a link to reset your password. Please delete the app, download it again and reset your password before connecting again and everything should be OK,
Thanks :)
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.