[The PayPal API has returned an error!]

Apologies for the delayed reply. 

 

This is for the website ecigmodshop.com.au. I am not the owner of this website and we are trying to integrate PayPal to the website where we face this issue. Can you please help on this?

[The PayPal API has returned an error!]

We tried enabling PayPal Express checkout for our website and we encountered with an error as follows

 

The PayPal API has returned an error! Ack:   Correlation ID:   Version:   Error Number:   Short Message:  

Long Message:

 

 

 

This does not have any logs being found on the Paypal side. The  redirection to PayPal did not happen and before that we are facing with this error. Can someone help fix this?