Probleme mit Artikelnummern

Hello everyone,

I have just the problem that I wanted to create new items. So I deleted the old ones. I got an error message … Error 500 but without further explanation. If I now want to create the article with the same article number I get the message that the article number is already taken. If I enter the item number but in the article overview, I can not find it, there is no article.

I then called up the database and searched for the articles there and deleted all the ones I found. Nevertheless, the error message continues to appear.

I’ve already completely emptied the cache but the error persists.


Does anyone have an idea what this may be?