Error in CalcCrRatioSlackTime Routine

SOLVED

Trying to run Schedule Generation for the first time and i'm getting a few errors.

it was going through the steps and stopped at a work order. gave an "Error 5 occurred at frmmfzmn001 in Procedure cmdGenerateSched_Click. Invalid procedure call or argument. I checked the messages and saw

warnings for Slack Time may not be accurate for WorkOrder #####, start date is not within schedule board parameters

Error: "Error in CalcCrRatioSlackTime Routine'

it looks like some of the work orders have some issues (warnings) but I don't know what the Error means, anyone experienced this before?