Repayment of Sign On Bonus with incorrect dates

My employer gave me a sign on bonus. The bonus letter says that if I leave within one year, I am obligated to repay the bonus, but the letter uses the wrong dates (stating things like "i.e. before DATE, 2022" instead of "DATE, 2023"). Nowhere in the letter does it use the correct date. It does, however, specify "twelve months after hiring date." Would the incorrect dates make the document unenforceable?

"In the event that you voluntarily resign from your position with EMPLOYER within 12 months of your start
i.e., on or before July 18, 2022, you will be responsible for reimbursing EMPLOYER for the entire
signing bonus."

"By signing this employment agreement, you authorize EMPLOYER to withhold $XXXX from any severance and other final pay you receive should your employment terminate on or before July 18, 2022"