shopify checkout problem

Hi !!!
i have opened a shopify store and attached my business paypal to receive payment!
at moment i'm in 15 days free trial.

I have set up store, but when i test the checkuot button i have this message !

i have to pay subscription to unlock ??
whit free trial i can't sell anythings??

i am having same problem and i am in trial too

Yes, that is correct. You can build your store within the trial period. If you want to start to sell your products you have to pay subscription. Also I can recommend to buy a domain instead of https://xxxxxxx.my shopify.com. Good luck!