I get this error while creating Identity Resolution rule in my playground Org

Hi @Krishnamoorthy Srinivasan I am a member of Trailhead Help, Can you please check with the above suggestions and let us know if the issue still exists or is resolved? If it is resolved, please post the solution or mark any one of them above which helped you to resolve your query and mark it "Best Answer" to close this thread. If not, kindly provide a few more details of the badge along with the URL of the Trailhead module/badge that you are working on. Thank You!

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