error code: 524

PayloadTooLargeError: request entity too large    at readStream (/var/app/current/node_modules/raw-body/index.js:163:17)    at getRawBody (/var/app/current/node_modules/raw-body/index.js:116:12)    at read (/var/app/current/node_modules/body-parser/lib/read.js:79:3)    at jsonParser (/var/app/current/node_modules/body-parser/lib/types/json.js:138:5)    at Layer.handle (/var/app/current/node_modules/express/lib/router/layer.js:95:5)    at trim_prefix (/var/app/current/node_modules/express/lib/router/index.js:328:13)    at /var/app/current/node_modules/express/lib/router/index.js:286:9    at Function.process_params (/var/app/current/node_modules/express/lib/router/index.js:346:12)    at next (/var/app/current/node_modules/express/lib/router/index.js:280:10)    at expressInit (/var/app/current/node_modules/express/lib/middleware/init.js:40:5)