Payment Processing not working on Woo Commerce

[jrj202]

I keep getting this error and need to figure out how I can get my payment processing to start working ASAP

Array
(
[0] => stdClass Object
(
[category] => AUTHENTICATION_ERROR
[code] => UNAUTHORIZED
[detail] => This request could not be authorized.
)

)
Order status changed from Pending payment to Failed.

[blackberryhouse · Accepted solution]

I was getting the same error in Woo, so I uninstalled Square from my site, and then reinstalled it. WooCommerce  is ever faithful to do many updates that effect payment processors, and sometimes it will tell you the payment gateway needs updated, and sometimes they don't. Any time I get an error, I go straight to the uninstall/reinstall, and it works every time. Try that and see if it helps.