Wow - sounds like something really went bonkers there! Usually, a validation error occurs when a user types something in a required text field, such as title or name, but then does not hit return or tab to indicate he or she is done typing. If the user uses the mouse to move on to another field, OLLY doesn't know that the required text field is complete and won't move on to something else.
The first thing to do is restart OLLY, because it will keep piling up errors until you do so. Hopefully that will fix it