Fixed banner seed.

src/scrapers/karups.js

@@ -24,7 +24,7 @@ function scrapeAll(scenes) {
 
 		const poster = query.img('.thumb img');
 
-		if (poster) {
+		if (poster && /\.\w{3,4}$/.test(poster)) { // missing poster points to https://media.karups.com/thumbs_pg/
 			release.poster = Array.from(new Set([
 				poster.replace('.jpg', '-feat_lg.jpg'),
 				poster,
@@ -68,7 +68,7 @@ function scrapeScene({ query }, { url }) {
 	// videos and photos seem to be removed, query educated guess just in case
 	const poster = query.poster('.video-player video') || query.img('.video-poster img');
 
-	if (poster) {
+	if (poster && /\.\w{3,4}$/.test(poster)) { // missing poster points to https://media.karups.com/thumbs_pg/
 		release.poster = Array.from(new Set([
 			poster,
 			poster.replace('-feat_lg', ''),