Hello there,
Thanks for reaching out! It looks like the mobile button is pushed too far to the right with the position settings that you are using. That is no problem though, you can actually create two buttons, one that shows on desktop and one that shows on mobile. Just hit the duplicate icon, then set the first button to appear on desktop and the second one to appear on mobile:
The copy icon is highlighted in the screenshot. Once you have a copy, you can set one to be visible on desktop and one on mobile as shown by using the icons to the right of the copy icon. When you have a separate mobile button like this, you can set different position parameters, that way you can move the mobile button further to the left where you want it.
Hope that helps! Please let me know if you need any more help setting up that separate mobile button. Cheers!