Aside from the error about the missing languages auotoload.php file that's not supposed to be in there to begin with.... my Admin logs display this error:
PHP Fatal error: Uncaught Error: Class "Unirest\Request" not found in /includes/modules/payment/square_webPay/square/square/src/Apis/BaseApi.php:64
Stack trace:
#0 /includes/modules/payment/square_webPay/square/square/src/Apis/OAuthApi.php(22): Square\Apis\BaseApi->__construct()
#1 /includes/modules/payment/square_webPay/square/square/src/SquareClient.php(327): Square\Apis\OAuthApi->__construct()
#2 /includes/modules/payment/square_webPay.php(733): Square\SquareClient->getOAuthApi()
#3 /squareWebPay_handler.php(33): square_webPay->exchangeForToken()
#4 {main}
thrown in /includes/modules/payment/square_webPay/square/square/src/Apis/BaseApi.php on line 64


I see it repeatedly... I have no idea what to be looking for on line 64 of this file... any ideas?