also ich habe mir jetzt das Logfile auf dem Server angeschaut - da tritt in regelmäßigen Abständen der gleiche Fehler auf:
[2019-01-31 09:00:01] plugin.ERROR: PayPal: Could not process express-checkout due to a communication failure {„message“:„Client error response [url] https://api.paypal.com/v1/payments/payment/PAYID-LRHMHVY61S5011976944710B [status code] 404 [reason phrase] Not Found“,„payload“:"{„name“:„INVALID_RESOURCE_ID“,„message“:„The requested resource ID was not found“,„information_link“:„https://developer.paypal.com/docs/api/payments/#errors",„debug_id“:„aa3da1496176c“}"} {„uid“:„90a6b79“}
[2019-01-31 09:03:23] plugin.ERROR: PayPal: Could not process express-checkout due to a communication failure {„message“:„Client error response [url] https://api.paypal.com/v1/payments/payment/PAYID-LRHMHVY61S5011976944710B [status code] 404 [reason phrase] Not Found“,„payload“:“{„name“:„INVALID_RESOURCE_ID“,„message“:„The requested resource ID was not found“,„information_link“:„https://developer.paypal.com/docs/api/payments/#errors",„debug_id“:„cb42f06548134“}"} {„uid“:„bd05ff2“}
[2019-01-31 09:16:47] plugin.ERROR: PayPal: Could not process express-checkout due to a communication failure {„message“:„Client error response [url] https://api.paypal.com/v1/payments/payment/PAYID-LRHMHVY61S5011976944710B [status code] 404 [reason phrase] Not Found“,„payload“:“{„name“:„INVALID_RESOURCE_ID“,„message“:„The requested resource ID was not found“,„information_link“:„https://developer.paypal.com/docs/api/payments/#errors",„debug_id“:„fe7f38a757905“}"} {„uid“:„c0c57b1“}
[2019-01-31 09:19:52] plugin.ERROR: PayPal: Could not process express-checkout due to a communication failure {„message“:„Client error response [url] https://api.paypal.com/v1/payments/payment/PAYID-LRHMHVY61S5011976944710B [status code] 404 [reason phrase] Not Found“,„payload“:“{„name“:„INVALID_RESOURCE_ID“,„message“:„The requested resource ID was not found“,„information_link“:„https://developer.paypal.com/docs/api/payments/#errors",„debug_id“:„27c9a803dda31“}"} {„uid“:„1228e2a“}
[2019-01-31 10:23:11] plugin.ERROR: PayPal: Could not process express-checkout due to a communication failure {„message“:„Client error response [url] https://api.paypal.com/v1/payments/payment/PAYID-LRHMHVY61S5011976944710B [status code] 404 [reason phrase] Not Found“,„payload“:“{„name“:„INVALID_RESOURCE_ID“,„message“:„The requested resource ID was not found“,„information_link“:„https://developer.paypal.com/docs/api/payments/#errors",„debug_id“:„2e740eac43c2b“}"} {„uid“:„ef632e0“}
[2019-01-31 11:23:01] plugin.ERROR: PayPal: Could not register webhooks due to a communication failure {„message“:„Client error response [url] https://api.paypal.com/v1/notifications/webhooks [status code] 400 [reason phrase] Bad Request“,„payload“:“{„name“:„WEBHOOK_URL_ALREADY_EXISTS“,„message“:„Webhook URL already exists“,„debug_id“:„8962126eec938“,„information_link“:„https://developer.paypal.com/docs/api/webhooks/#errors",„details“:[],„links“:[]}"} {„uid“:„f826225“}
[2019-01-31 11:23:08] plugin.ERROR: PayPal: Could not register webhooks due to a communication failure {„message“:„Client error response [url] https://api.paypal.com/v1/notifications/webhooks [status code] 400 [reason phrase] Bad Request“,„payload“:“{„name“:„WEBHOOK_URL_ALREADY_EXISTS“,„message“:„Webhook URL already exists“,„debug_id“:„c2d0e8134750e“,„information_link“:„https://developer.paypal.com/docs/api/webhooks/#errors",„details“:[],„links“:[]}"} {„uid“:„08adb9d“}
[2019-01-31 11:24:44] plugin.ERROR: PayPal: Could not register webhooks due to a communication failure {„message“:„Client error response [url] https://api.paypal.com/v1/notifications/webhooks [status code] 400 [reason phrase] Bad Request“,„payload“:“{„name“:„WEBHOOK_URL_ALREADY_EXISTS“,„message“:„Webhook URL already exists“,„debug_id“:„dbb569c2704f5“,„information_link“:„https://developer.paypal.com/docs/api/webhooks/#errors",„details“:[],„links“:[]}"} {„uid“:„7ec1cda“}
[2019-01-31 11:24:54] plugin.ERROR: PayPal: Could not register webhooks due to a communication failure {„message“:„Client error response [url] https://api.paypal.com/v1/notifications/webhooks [status code] 400 [reason phrase] Bad Request“,„payload“:“{„name“:„WEBHOOK_URL_ALREADY_EXISTS“,„message“:„Webhook URL already exists“,„debug_id“:„6b530fc62e32b“,„information_link“:"https://developer.paypal.com/docs/api/webhooks/#errors",„details“:[],„links“:[]}"} {„uid“:„c7dcf04“}