Systemjob "Collection Organization Size Statistics" fails

Hi,

since a couple of days I can see in the system jobs overview of the CRM that there is a systemjob which fails permanently each hour:

If I click on a job and look at the error details, it says: "The async operation type '20' was not recognized as a valid value for the context of: Server." I found out that the async operation type 20 means the id of this systemjob itself.

I want to know:

• What does this job usually do?
• What happens if this job fails (is it really bad that it fails or is this error something I can ignore)?
• How to fix this issue?

With best regards,

Michael