Hello @serdarangungmail-com,
The notice bar has the option of displaying the notice bar on bottom or at the top . You can set the location by going to Admin Panel > Notice Bar > Display Configurations > Notice Bar Positions .
Similarly from the plugin you can provide the padding to shift the notice bar below the menu .
Also you can use given CSS to shift the slider below and make the notice bar appear above the slider so that it doesn’t overlap menu or slider .
For this go to Admin Panel > Appearance > Customize > Additional CSS and paste below given CSS.
#header {
padding-top: 85px;
}
Hope this helps.
Best Regards!!