How can I fix my non-responsive drawer menu on mobile?

Dear fellow users,

I have a problem with my drawer menu when using mobile devices, which I cannot seem to fix by myself. Below is a screenshot that demonstrates my issue in a clearer way. As you can see my drawer menu 1) is not 100% responsive and 2) When the menu is collapsed If I scroll then the page just keeps scrolling which is not what I want. Any ideas on how I can fix those two issues is appreciated :slightly_smiling_face:
Thank you in advance for your help and time!!

The url to my website is: https://www.off-market-boutique.com/

Hi @off-market_1

I checked this, it will done using custom code, have to add class on menu open and set the design to fixed using that class.

it will took 2-3 hours approx.

Please let me know if need any help.

Contact info is in signature.

Thanks
Laddi