Hi,
the issue is coming from rewrite rule
you have a rule
RewriteCond %{HTTP_REFERER} !^https://website.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^https://website.com$ [NC]
RewriteCond %{HTTP_REFERER} !^https://www.website.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^https://www.website.com$ [NC]
RewriteCond %{HTTP_REFERER} !^https://website.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^https://website.com$ [NC]
RewriteCond %{HTTP_REFERER} !^https://www.website.com/.*$ [NC]
RewriteCond %{HTTP_REFERER} !^https://www.website.com$ [NC]
RewriteRule .*\.(jpg|jpeg|gif|png|bmp)$ - [F,NC]
at bottom of your rules , I think it’s hot-link protection , but when image server fetches the images doesn’t have “referer” so it’s hitting 403.
Best regards,