Banner Problem

Hello, there seem to be a problem with the plugin when in the vendor dashboard you want to add a banner. If the vendor wants to upload this image then he has to first select static image option and upload both images, then Save. After that he can switch to slider option and upload slider images. (cf picture) https://ibb.co/f9ZsRrG

I believe it’s coming from plugin as I installed it on another website and had the same problem. Do you have a fix?

Thanks in advance and best regards