Publishing error due to already deleted schedule data

[Hcx51Hcap]

A content publication has failed, this error message is displayed:
400 Schedule cannot be earlier than now

The data in the Item History:

Created by xy Wednesday, 25. January 11:52
on xx / Draft

Updated by Xy Wednesday, 25. January 11:59 version: 1
updated fields: headline, body_html, abstract, subject, authors, keywords, annotations, fields_meta, state, operation, version_creator, word_count, expiry

Updated by Xy Wednesday, 25. January 12:05 version: 2
updated fields: associations, operation, version_creator, expiry, body_html, refs

Updated by Xy Wednesday, 25. January 12:06 version: 3
updated fields: body_html, associations, fields_meta, headline, abstract, operation, version_creator, word_count, expiry, refs

Scheduled by Xy Wednesday, 25. January 12:08 version: 4

Descheduled by Xy Thursday, 26. January 19:47 version: 5
updated fields: publish_schedule, schedule_settings, operation, version_creator, expiry, state, firstpublished, associations

Updated by Xy Thursday, 26. January 19:49 version: 6
updated fields: publish_schedule, target_subscribers, schedule_settings, operation, version_creator, expiry

After Descedule the Publish scedule data has been deleted. The error message states that the publication fails due to scheduling the publication for an earlier date.
How to remove the publish scedule data?