I am working on WordPress blog. In my installed WordPress Blog, First page blog posts are repeated displaying in other blog pages i.e., pagination problem. How can I avoid it?

WordPress Blog:
http[:]//yogashaktiintl[.]com/blog/

Post on the above WordPress blog are repeated shown in other blog pages, see below links.

http[:]//yogashaktiintl[.]com/blog/page/2/
http[:]//yogashaktiintl[.]com/blog/page/3/
http[:]//yogashaktiintl[.]com/blog/page/4/

How can I avoid it?