Hi Tortenguru, why do you add wikipedia + wikidata of not-existing Articles/Entity? This is just a dead link.
wikidata=https://de.wikipedia.org/wiki/Konditorei_Fromme
wikipedia=de:Deutschsprachige Wikipedia

Alex

"shop=mall" (shopping centre) ?
or "landuse=commercial"
osm.wiki/Tag:landuse=commercial
osm.wiki/Key:shop

Hi SeFaireConnaitre, what is this node? Alex

osm.org/node/6246888916/history

Hi Stretch Longfellow, why you added wikidata=0827643 ?
KR, Alex

Hi farukbrgl, please check the type of your new relation.
Thanks, Alex

check taginfo service:
https://taginfo.openstreetmap.org/reports/key_lengths
https://taginfo.openstreetmap.org/reports/characters_in_keys#problem

can you fix that?

I can ensure it is done by hand (no script on my side), but yes, it it sometimes difficult to decide if the original Author did it in a reasonable way. If it is a List or a Building with wikipedia=en:building, then it is clearly wrong. But sometimes it is hard to say.
Many regards, Alex

Hi, please add lanuage-code to wikipedia=lang:Article, see osm.wiki/Key:wikipedia
Thanks, Alex

Hi mueschel, please write wikipedia=en:Abcde. see osm.wiki/Key:wikipedia
Thanks, Alex

Hi BVG973, please write wikipedia=fr:Abcd, not =http.. , see osm.wiki/Key:wikipedia
Thanks, Alex

I removed this problem-tag (7x), as we get no answer. Alex

Hi Olyon, there was a typo "+"="SEA", I made it a note= . I'm not sure what was your intension. KR, Alex

Hi Guylamar2006, please follow the OSM-wiki, wikipedia=en:Article, see osm.wiki/Key:wikipedia
Thanks, Aelx

osm.wiki/Key:wikipedia

Hi, please write wikipedia=en:Name, not http...
Thanks, Alex

Hi houtari, please write tourism=hotel.
Thanks, Alex

Hi geoaria, please follow the OSM wiki, wikipedia=fa:... , see osm.wiki/Key:wikipedia
Thanks, Alex

Hi 610CH-405, please read OSM wiki, osm.wiki/JA:Key:wikipedia
wikipedia=ja:..
Thanks, Alex