PayPal Commerce plugin - Hit "Uncaught ReferenceError: paypal is not defined" during checkout

Thats login is just going to get the Keys and setup the plugin Automatically
If you have you Api Keys then in Confugure you can also tick configure manually and enter them

What logo ? On nopCommerce website you would need to manually edit the code

Sorry the previous image doesn't appear, hope can see it now.
Can the below logo be removed during sign up incase user what to sign up ?

The PayPal team confirmed that this information cannot be removed from the PayPal website.

No worries about that because it's just an informational message. All merchant and customer data is stored on PayPal servers, as well as payment processing takes place through PayPal services and servers (nopCommerce team does not have access to them)

P.S. Please note that you can also register on PayPal website directly instead of this default onboarding process. Then go to the PayPal Commerce configuration page and tick "Specify API credentials manually" checkbox