Calculated column error

Hello Elyblog2009, and thank you for sharing a question with the Community.  Please remember to adhere to the decorum of the Community Forum when asking a question.

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https://community.fabric.microsoft.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-Forum/ba-p/963216

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https://community.fabric.microsoft.com/t5/Desktop/How-to-Get-Your-Question-Answered-Quickly/m-p/1447523/highlight/true#M607150

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