CORE Thème - Responsive problem

Hello every body,
I am new here. Happy to meet you.
I have a problem with CORE thème on wordpress.
Before the theme was ok. But now it is not responsive. The site is not ok on mobile phone.
Could you help me?
By advance thank you.


Contact with your purchase item author @ThemeGoods hope they will helped!


Thank you for your answer.
I lost the email with code. It was on 2018. I have installed “Core” on my website wordpress in 2018. The web site runed ok.
But now, it is not ok on mobile phone. my website is :
You can look it with computer. It is ok with computer.
Could you help me for the problem with mobile phone?
Thank you,