Jun 10 05:45:10 ip-172-31-7-168 web: at XMLHttpRequestEventTarget.dispatchEvent (/var/app/current/node_modules/xhr2-cookies/dist/xml-http-request-event-target.js:34:22)
Jun 10 05:45:10 ip-172-31-7-168 web: at XMLHttpRequest._setReadyState (/var/app/current/node_modules/xhr2-cookies/dist/xml-http-request.js:208:14)
Jun 10 05:45:10 ip-172-31-7-168 web: at XMLHttpRequest._onHttpResponseEnd (/var/app/current/node_modules/xhr2-cookies/dist/xml-http-request.js:318:14)
Jun 10 05:45:10 ip-172-31-7-168 web: at IncomingMessage.<anonymous> (/var/app/current/node_modules/xhr2-cookies/dist/xml-http-request.js:289:61)
Jun 10 05:45:10 ip-172-31-7-168 web: at IncomingMessage.emit (node:events:538:35)
Jun 10 05:45:10 ip-172-31-7-168 web: at IncomingMessage.emit (node:domain:475:12)
Jun 10 05:45:10 ip-172-31-7-168 web: at endReadableNT (node:internal/streams/readable:1345:12)
Jun 10 05:45:10 ip-172-31-7-168 web: at processTicksAndRejections (node:internal/process/task_queues:83:21)
Jun 10 05:45:15 ip-172-31-7-168 web: Error: Invalid JSON RPC response: "<html>\r\n<head><title>502 Bad Gateway</title></head>\r\n<body>\r\n<center><h1>502 Bad Gateway</h1></center>\r\n</body>\r\n</html>\r\n"
Jun 10 05:45:15 ip-172-31-7-168 web: at Object.InvalidResponse (/var/app/current/node_modules/caver-js/packages/caver-core-helpers/src/errors.js:90:16)
Jun 10 05:45:15 ip-172-31-7-168 web: at XMLHttpRequest.request.onreadystatechange (/var/app/current/node_modules/caver-js/packages/caver-core-requestmanager/caver-providers-http/src/index.js:118:32)