its showing in Pre code error

Hello friends,

I am new for this pluign https://wordpress.org/plugins/multi-column-tag-map/

I installed and tried, its showing the tags but its not listing correctly. its like zig zag.

refer image url: http://i.imgur.com/rlWoEY8.png

and i saw this plugin on another website its showing correctly to them.

http://prntscr.com/665hqp

I think its only showing in pre code error form, help me to listing like this https://s.w.org/plugins/multi-column-tag-map/screenshot-1.gif?r=1092186

how can i index my tags list correctly.

Thanks