Exception of type "uipath.restapi.RestException'was thrown in uipath communication error with robot service..please check robot service status- http request activity

I have got the robot error as exception of type "uipath.restapi.RestException’was thrown in uipath communication error with robot service…please check robot service status, whether this will affect the http request activity while performing url check?

Because some urls not working in http activity …althought it works manually ? whether that my be issue or somether…if somether means what kind it would be?
for example- mostly cloud based links were not working inside https activity but manually working

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