Schedule Refresh Error due to Function used in Desktop

And here is the code from the table: factOpportunitiesLeaders

let
Source = factOpportunities,
#"Removed Other Columns" = Table.SelectColumns(Source,{"_new_opportunityleader1id_value", "_new_opportunityleader2id_value", "_new_opportunityleader3id_value", "_new_opportunityleader4id_value", "opportunityid"}),
#"Reordered Columns" = Table.ReorderColumns(#"Removed Other Columns",{"opportunityid", "_new_opportunityleader1id_value", "_new_opportunityleader2id_value", "_new_opportunityleader3id_value", "_new_opportunityleader4id_value"}),
#"Unpivoted Other Columns" = Table.UnpivotOtherColumns(#"Reordered Columns", {"opportunityid"}, "Attribute", "Value"),
#"Removed Columns" = Table.RemoveColumns(#"Unpivoted Other Columns",{"Attribute"}),
#"Renamed Columns" = Table.RenameColumns(#"Removed Columns",{{"Value", "Leader"}})
in
#"Renamed Columns"