IF formula error

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Could anyone tell me what's wrong with these formula? Why is it saying incorrect argument set? This formula worked on other sheets. Thanks

=IF(OR(Status18 = "In Progress", Status19 = "In Progress", Status20 = "In Progress", Status21 = "In Progress", Status22 = "In Progress", Status23 = "In Progress", Status24= "In Progress", Status25 = "In Progress", "In Progress")

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