Similar case :
osm.wiki/Tag%3Ashop%3Dstreet_vendor

Example to tag the times it's there :
https://projets.pavie.info/yohours/?oh=May-Sep%2008:00-22:00

osm.wiki/Tag%3Ashop%3Dstreet_vendor

osm.wiki/Key:opening_hours:kitchen

Seems to be for children (no mall) :https://www.facebook.com/Primulandia/

Probably closed
https://www.motorradonline.de/ratgeber/hein-gericke-meldet-zum-vierten-mal-insolvenz-an-zubehoer-kette-pleite-abverkauf-laeuft/

Probably closed
https://www.motorradonline.de/ratgeber/hein-gericke-meldet-zum-vierten-mal-insolvenz-an-zubehoer-kette-pleite-abverkauf-laeuft/

Recommended : https://taginfo.openstreetmap.org/tags/shop=street_vendor

Website offline, shop still in operation ?

Motorcycle tags : osm.wiki/Tag:shop%3Dmotorcycle

Background info : osm.wiki/Namespace_tag_overview#Vehicle_service_tags

osm.wiki/Key:opening_hours:kitchen