So Marvel Heroes just did a significant update (now called "Marvel Heroes 2015", as mentioned above). Theo ther day there was MASSIVE giveaway of items as part of the game's anniversary (some of which were given away by SHIELD Agent Stan Lee!) including almost certainly the most valuable giveaway, a new item storage (or "S.T.A.S.H.") unit (which by this point, after the MANY items I've gotten through giveaways, I desperately needed). You need to be level 30 + to get the items from Stan though IIRC. You should try logging in, you might still be able to get them.
Which brings me to the next thing I have to been up: trying to log in. Since the new update the game's had a LOT of glitches and/or problems and the servers have been done a few times, presumably while they work out the kinks. Today I had THREE different problems in a half-hour span alone (difficulty downloading the newest update, the screen turning completely black anytime I clicked the mouse, and the servers being down). Hopefully things will smooth out in time.