Charts not showing in preview

I installed basic charts and I have my data in datastore. I was able to select bar chart or pie chart from the views option but the charts are not loaded in the preview. When I checked the browser console, I got the following error lines

jQuery.Deferred exception: self.el.context is undefined initialize@http://172.30.3.49:5000/fanstatic/basiccharts/:version:2018-11-28T08:31:38.55/basiccharts_view.js:26:9
module.createInstance@http://172.30.3.49:5000/fanstatic/base/:version:2018-06-05T08:57:29.15/module.js:338:7
module.initializeElement/<@http://172.30.3.49:5000/fanstatic/base/:version:2018-06-05T08:57:29.15/module.js:307:9
each@http://172.30.3.49:5000/fanstatic/vendor/:version:2018-06-05T08:57:28.68/jquery.js:362:11
module.initializeElement@http://172.30.3.49:5000/fanstatic/base/:version:2018-06-05T08:57:29.15/module.js:303:5
module.initialize/<@http://172.30.3.49:5000/fanstatic/base/:version:2018-06-05T08:57:29.15/module.js:280:7
each@http://172.30.3.49:5000/fanstatic/vendor/:version:2018-06-05T08:57:28.68/jquery.js:362:11
each@http://172.30.3.49:5000/fanstatic/vendor/:version:2018-06-05T08:57:28.68/jquery.js:157:11
module.initialize@http://172.30.3.49:5000/fanstatic/base/:version:2018-06-05T08:57:29.15/module.js:279:44
ckan.initialize/<@http://172.30.3.49:5000/fanstatic/base/:version:2018-06-05T08:57:29.15/main.js:46:7
fire@http://172.30.3.49:5000/fanstatic/vendor/:version:2018-06-05T08:57:28.68/jquery.js:3317:12
fireWith@http://172.30.3.49:5000/fanstatic/vendor/:version:2018-06-05T08:57:28.68/jquery.js:3447:8
mightThrow@http://172.30.3.49:5000/fanstatic/vendor/:version:2018-06-05T08:57:28.68/jquery.js:3642:14
resolve/