Marvel’s Avengers has been updated to version 1.54 today by Crystal Dynamics. You can find out the complete patch notes from here.
This patch appears to follow a major update on November 30 that added Spider-Man, a new Klaw Raid, and more content to Marvel’s Avengers. Some of the fixes include cases where the players were unable to purchase shipments and more. You can find out the complete details on this update below, or have a look at the official Tweet.