Copyright Issue Of This Theme

Hello, I have a complain about the Theme. I have a premium WordPress Theme in TemplateMonster https://www.templatemonster.com/wordpress-themes/techno-it-solution-service-wordpress-theme-94212.html. And it has been approved on 20-01-2020 https://prnt.sc/125h7hu. My Complain is the author copied my theme name and content from my theme. And for the reason my theme creating very big problem https://prnt.sc/125hl83. My theme want to update but if i give update then my theme will be lost all data and design. And for the problem i want a solution as soon as possible. Please do a legal solution. I hope i will got a result very soon. Thank You.