Envato theme check

I have converted HTML to Wordpress. That’s why I have created some custom widgets and it’s working fine. Now I am trying to solve error using Envato theme check plugin. I have solved most of the waring but can’t solve. I can’t understand what is the problem of this error?enter image description here
i also check this guideline but can’t satisfyedhttps://www.wordpress-studio.io/basic-guidelines-to-approve-a-wordpress-theme-in-themeforest-part-1/bed-sale

Please contact to the author, the theme author will assist you.

How to contact an author :

Your widgets have to be in a plugin, not in a theme. Make sure to read these guidelines: