Edit and Del Buttons are not shown

Please try the plugin on a different browser, and let me know what will happen.

I tested it on Chrome, Safari and Firefox. It looks everywhere the same.

Please try to reinstall it and see what will happen.

I reinstalled it, but it had no effect

I can not know why only in your site this issue appeared!, it may be there is a conflict with something else, if I found a way to solve it, I will write it here for you.

Yes, you are right, just tested it with another WP. There it worked and was shown properly. Sorry, I guess probably one of the other plugins cause that

You are welcome.