You need to be patient. The New Jersey state return seem to be taking an inordinate amount of time before the state accepts or rejects the e-filed state tax return. Other users have indicated it took 10 days for New Jersey to accept the tax return.
If you filed the state return at any time on or before April 18, 2023 and you paid any state taxes owed by direct debit from your bank account, then your state return and payment were timely filed.