In Metering "2021/Q1" is not a valid value for product version label according to https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#syntax-and-character-set

Use the guidance in the following Confluence page to update the documentation:
Replace YYYY/QX with 2021-QX. In short, replace / with -

For example, replace 2021/Q1 with 2021-Q1 for product GA in Q1

https://docs.jboss.org/display/RHMWRT/Metering+Runtimes+in+OpenShift?focusedCommentId=88506445#comment-88506445