Hello. I integrated system PayPal-PHP-SDK in the my site. Testing sandbox method - it's ok! I dont see error. After i switch system in live mode, starting test, generated site errors. Log paypal: [20-01-2018 09:55:17] PayPal\Core\PayPalHttpConnection : INFO: POST https://api.paypal.com/v1/oauth2/token
[20-01-2018 09:55:18] PayPal\Core\PayPalHttpConnection : INFO: Response Status : 401
[20-01-2018 09:55:18] PayPal\Core\PayPalHttpConnection : ERROR: Got Http response code 401 when accessing https://api.paypal.com/v1/oauth2/token. {"error":"invalid_client","error_description":"Client Authentication failed"} I dont know how check and fix this error. Tell me please, how fix this error? Where, that check and run system in live mode? Any ansew save me. Thanks. P.S. Sorry at my crooked english.
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