Hi Toufiq, the bug must be internal, maybe you remember we had something like this on the main page with the slideshow. The problem came from an old Quickstart package that had a lot of bugs at that time. We have already solved some of them.
As for the images, in this case it must be internal. The images are not larger than 640x480 of 480x640. That should not be a problem at all. Normally the images are adjusted automatically.
Here is a screenshot of the settings under Options-SP-Property.
This shows that the images should be adjusted accordingly, but this is not the case.
Maybe it is also because we have never replaced anything. At that time as the extension has been upgraded to Joomla 4 we have installed the Quickstart package but it turned out that exactly this package was faulty at the beginning. This was not upgraded properly. In retrospect, perhaps, but not at the beginning, maybe all these errors still come from there.