iPhone number not recognized by iCloud for iMessage and FaceTime

It states the sim has been removed even though there’s been no changes. My iCloud account when signing into imessage says it’s syncing and then cancels it off

[Re-Titled by Moderator]

Original Title: it says my phone number is no longer active even though it is. My iCloud won’t allow me to access iMessage or FaceTime with the number even though I still have it?