I changed the width in the single post section.
Basically I changed something in this region.
body.single .content { width: 80%; }
body.single .content.full-width { width: 20%; }
body.single .content.center {
margin: 0 auto;
width: 100px;
max-width: 100%;
This is the area on which I was working after which all my shortcodes are working weirdly now.
Also, is there any way for me to check the original log for the theme so that I can see what are the changes I made or to go back to default theme?
Thank you so much for replying.