Diagnosis page Error:Trying to visualize a point data using createviz in cartodb.js

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I had setup the cartodb locally in my machine following this tutorial https://github.com/danseely/cartodb-install/blob/master/DEV-INSTALLATION.mdEverything is installed perfectly i can visualize a data in my local account,but when i try to import a dataset it's showing error

so i created dataset with point data.when i try to visulaize it using createviz function in cartodb.js i can only see the basemap my point data is not visible

When i go diagnosis page development.localhost.lan:3000/diagnosis

I'm getting this error

CartoDB extension: error

Installed version: 0.11.1 Current supported version: 0.9.Latest version: 0.9.3Windshaft: error

Service url: http://localhost.lan:8181 Full config: {"filter"=>"mapnik", "internal"=>{"protocol"=>"http", "domain"=>"localhost.lan", "port"=>"8181", "host"=>"127.0.0.1", "verifycert"=>false}, "private"=>{"protocol"=>"http", "domain"=>"localhost.lan", "port"=>"8181", "verifycert"=>false}, "public"=>{"protocol"=>"http", "domain"=>"localhost.lan", "port"=>"8181", "verifycert"=>false}} error fetching info: A JSON text must at least contain two octets!SQL API: error

Service url: http://localhost.lan:8080 Full config: {"private"=>{"protocol"=>"http", "domain"=>"localhost.lan", "endpoint"=>"/api/v1/sql", "port"=>8080}, "public"=>{"protocol"=>"http", "domain"=>"localhost.lan", "endpoint"=>"/api/v2/sql", "port"=>8080}} error fetching info: A JSON text must at least contain two octetAny help would be appreciated



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