Operator status is unknown with 'no operators found in channel' messages in catalog operator logs

Issue

Issue-1

• Operator status is unknown and the operator upgrade status is unknown failure.
• Getting below messages in the catalog operator logs.

YYYY-MM-DDTHH:MM:SS.xxxxxxxxZ xxxxx 14:43:40.547245       1 event.go:282] Event(v1.ObjectReference{Kind:"Namespace", Namespace:"", Name:"openshift-operators", UID:"xxxxxxxxxxxxxxxxxxx", APIVersion:"v1", ResourceVersion:"xxxx", FieldPath:""}): type: 'Warning' reason: 'ResolutionFailed' constraints not satisfiable: no operators found in channel <channel-name> of package <operator-name> in the catalog referenced by subscription <operator-subscription>, subscription <operator-subscription> exists

Issue-2

• Operator is stuck in installation phase and the install plan is not getting created.

• The operator's subscription describe output shows ResolutionFailed in the Status.Conditions section with an error message - constraints not satisfiable: no operators found in channel.. for any existing affected operator/s in the namespace.

Note: The affected operator is the one which is shown in the ResolutionFailed error, NOT the one which is not getting installed.

- message: 'constraints not satisfiable: no operators found in channel stable of
      package elasticsearch-operator in the catalog referenced by subscription elasticsearch-operator,
      subscription elasticsearch-operator exists'
    reason: ConstraintsNotSatisfiable
    status: "True"
    type: ResolutionFailed