If you use the sticky header theme at your store while enabled different bars at the same time, then It might be possible to bars overlaps your header. To resolve this error from your store, please unchecked the sticky option from the app.
1. Go to the bar and unchecked the sticky box from the option available in the app and save settings.
If you have any further kind of error at your store, kindly write to our support team and our team will assist you to get resolve your issue quickly.