Weird Error logs

Your software
My Mautic version is: 4.4.5
My PHP version is: 7.4
My Database type and version is: MySQL 5.7

Your problem
My problem is:

These errors are showing in the log:
I have a number of entries identical to that:
[2023-03-12 20:40:02] mautic.ERROR: CAMPAIGN: blank-grapejs is missing a required config file {“hostname”:“”,“pid”:44863}
It is generated every minute. What does this error mean?

Steps I have tried to fix the problem: