Noindex robots meta is enabled

We have just installed RankMath to replace Yoast. We have a Users page that is only accessed by Admin and it is where we can update information about Users who have logged onto our site.

We now have the following message appearing on the User page:
Noindex robots meta is enabled. This page will not appear in search results. You can disable noindex in the Advanced tab.

We do not want User information to appear in any search results so we are concerned about disabling noindex but certainly don’t want this msg appearing in the middle of every user when we are reviewing them.

Also, we use a User Notes plugin. Until we installed RM we used to just click in the Date field and a calendar would pup up and, in the Staff field, the list of registered staff would appear. Now, none of these appear. Staff is a required field and it also won’t allow us to type in a name so we cannot enter any notes.