How to stick sidebar via child theme without any plugins if available?

@pierre1688

Can you contact us via our chat support through our site link?

Thanks.

Hi,
I just installed it with free version. Not pro one. So, can I still contact with you all via the chat support through site link? If yes, please also provide it to me for further reference.
And, this isssue can’t be fixed with child theme which implemented any code or not?

Thanks.

@pierre1688

You can contact to us via this link: https://themegrill.com/

Thanks.