Help for getting an account

Hi I just installed Delta Chat on my Android phone
and I can’t open an account I don’t know how to do it
when I opened the app I saw connect to your server then I click it so I saw email and existing password I think it’s of an existing Delta Chat account
I never used Delta chat i don’t know what to do
Someone help me

Delta Chat is based on E-Mail.
So you just have to use a regular E-Mai Account.
You can use your already used Mailaccount.
But I suggest to use a extra account.