For the entirety of the event Baltimore will be performing road construction outside of the Baltimore Convention Center. This affects I-395N into the city around Camden Yards. This should have no major impact. There will be an established detour to get you to the Convention Center.
Follow I-395 N but take the MLK Blvd exit. At the second light make a right on Pratt St and you'll arrive along the backside of the Convention Center. Alternatively, you can take 295 (B/W Pkway) straight into the city. Follow your GPS's re-routing if unsure.