[Resolved][Kibana7.0.1] Error occurs " Request Timeout after 30000ms" when starting kibana

Elastic Stack Logstash
1

Hi Team,

I was running into below error when starting kibana, and ES side has no error and exception.

 log   [06:49:29.171] [info][status][plugin:spaces@7.0.1] Status changed from yellow to green - Ready
 error  [06:49:57.442] [warning][process] UnhandledPromiseRejectionWarning: Error: Request Timeout after 30000ms
    at C:\elkstack\kibana-7.0.1-windows-x86_64\kibana-7.0.1-windows-x86_64\node_modules\elasticsearch\src\lib\transport.js:355:15
    at Timeout.<anonymous> (C:\elkstack\kibana-7.0.1-windows-x86_64\kibana-7.0.1-windows-x86_64\node_modules\elasticsearch\src\lib\transport.js:384:7)
    at ontimeout (timers.js:436:11)
    at tryOnTimeout (timers.js:300:5)
    at listOnTimeout (timers.js:263:5)
    at Timer.processTimers (timers.js:223:10)
    at emitWarning (internal/process/promises.js:81:15)
    at emitPromiseRejectionWarnings (internal/process/promises.js:120:9)
    at process._tickCallback (internal/process/next_tick.js:69:34)
 error  [06:49:57.460] [warning][process] Error: Request Timeout after 30000ms
    at C:\elkstack\kibana-7.0.1-windows-x86_64\kibana-7.0.1-windows-x86_64\node_modules\elasticsearch\src\lib\transport.js:355:15
    at Timeout.<anonymous> (C:\elkstack\kibana-7.0.1-windows-x86_64\kibana-7.0.1-windows-x86_64\node_modules\elasticsearch\src\lib\transport.js:384:7)
    at ontimeout (timers.js:436:11)
    at tryOnTimeout (timers.js:300:5)
    at listOnTimeout (timers.js:263:5)
    at Timer.processTimers (timers.js:223:10)

How to resolve it? Any other information needed, please let me know.