Un-handled documents Error in microservices

[baarsamo]

Describe the bug
I am getting this un-handled error in Kibana in production like in the Documents microservices.

this occurs in 1.5.1

[Zangetsu101]

Same as #7589

[euanmillar]

@rikukissa looks to me like this should be addressed as a bugfix in certified copies and then applied to a hotfix to suppress the error in 1.6.1. Certified copies will not be available until 1.7.0. Some kind of script may need to be run to re-create all the certificate PDFs in Minio if the linked issue that @Zangetsu101 mentions is in fact the cause.

[euanmillar]

@rikukissa @Zangetsu101 Here is the fix: #8010