hi thank u for your replay:)
i dont use the sandbox. i tried to purchase with 1$ from the shop.
at the setting checkout page i put the token number and the email address of my business account.
when i tried to push the other button to submit the order (not yours with paypal logo), it related me to a paypal page and it looked fine.. i filled up the form and submited it but nothing really happened. it didnt send me and email confirmation nor the woocommerce plugin.
not sure where is the problem/