The journal entry that was imported into QuickBooks was blank and contained no values.
This is likely due to the system already considering the date as having been previously sync'd to QuickBooks.
Step 1: Delete journal entries within QuickBooks that have been made for the date in question as well as any subsequent dates
Step 2: Within Settings -> QuickBooks Integration -> Reset the 'Sync Date' in Club Caddie to the day prior to the date you are attempting to sync
Step 3: Set the to and from date to the subsequent date and reattempt the sync.