Web Part Error: The control type 'System.Decimal' is not allowed on this page. Correlation ID: ee9579a1-09de-e014-6eb5-3e83f23dbf88.

Web Part Error: The control type 'System.Decimal' is not allowed on this page. Correlation ID: ee9579a1-09de-e014-6eb5-3e83f23dbf88.