Google AdSense - Thin Content Issues

I have added a website for Google AdSense Review but it got rejected by Google and the reason was :
1). Thin Content
2). Low Quality Content

Website : https://www.upbrighter.com
Please share your valuable replies... Highly Appreciated!


I have approved websites in past for Google AdSense but this time I can not add content to main pages of website. Is there any way to get this website approved by Google? WordPress ...