Hello,
Thanks for contacting us.
1/ Yes, images of categories can’t be automatically associated with categories because of different ids on demo and your sites. Please select images manually, or delete demo caregories and create new own categories with new images.
2/ I can see the banner on your site, please clear cache and check one more time – https://prnt.sc/o_u02BK-j9Ms
I’ve enabled Elementor for static blocks, so if you need to edit the banner of Footer static blocks content, use Elementor there.
3/ It is recommended to re-save Theme Options after the import.
4/ Clear cache and check now.
5/ We’ve checked, and there is no such problem on our test site, after the import.
Let us know if any other assistance will be needed.
Regards