TemplateToaster provides an option to add a Banner into Banners module of Joomla. Please follow the steps provided below to add a new banner:
Open Joomla admin panel -> Components -> Banners -> New -> Add details -> Save
Please follow the steps provided below to add a banners module:
Go to Control panel of Joomla -> Modules -> New -> Select Banners(as module type) -> Add details -> Select the position for it -> Save