The article text provided could not be retrieved in full — only the page's navigation menu and headline were included, with no actual story content about the cancelled concert. As a result, no reliable details are available on why Barry Manilow's Kentucky show was called off or when it was rescheduled, if at all.

I'd recommend fetching the article again or checking the original source directly, as the text supplied does not contain enough information to produce an accurate, fact-based summary without speculation.