Fields do not disappear after deactivating or deleting

Hi! I needed to remove a previously added checkout field, so I deactivated it. That had no effect. The field was still there on the checkout page. (No cache, private window for testing). Then I deleted the whole field: still there. Then I deactivated the whole plugin: field still there at checkout! Then I used WP-Optimize to clean up my database, in case there was some issue there. Still no effect. I ended up tracking down the string of the field in the actual database table via phpMyAdmin, and removed it there. That did the trick. Conclusion: there is a problem removing previously added fields from the checkout form. Hi, are you using another Plugin as well? Without more details of the Website, I cant say anything. If you need more help, Pls use our support. thanks