'Addin button in module with same name: "The macro may not be available in this workbook"

I have made a custom addin with buttons. I made a simple one for "Center Across".

I created the Addin using OfficeRibbonXEditor-NET5-Binaries and the module is called CenterAcross.

I get

"The macro may not be available in this workbook"

Sub CenterAcross(control As IRibbonControl)

    With Selection
        .HorizontalAlignment = xlCenterAcrossSelection
        .VerticalAlignment = xlBottom
        .WrapText = False
        .Orientation = 0
        .AddIndent = False
        .IndentLevel = 0
        .ShrinkToFit = False
        .ReadingOrder = xlContext
        .MergeCells = False
    End With
    
End Sub


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