Remove background tasks - how to?

[dmitry.s]

Could you please use search before creation of new topic

Background Process Stuck

Hello, I marked all the Contractors and deleted them 5 hours ago and Yeti is still processing the task. Please find the attachment of the background tasks. https://drive.google.com/open?id=1U7y-7rZ6gKpb8FrLqaGJOm9oQwEHGi1G