Plutonium

Xerxes Black ops 2 opens fine through steam, just not through plutonium.
How do i check that?

I tried that but it unfortunately didn't work

When i try to launch my black ops 2 game from pluto, it takes me to the cmd promt and gives me
"Loading fastfile code_pre_gfx_mp
[STEAM] 1 calls ready, running...
[STEAM] running call 1
Plutonium r3641 >"
and doesnt go past that, I was playing it fine last night too.
MW3 plays just fine.
purchased BO2 from steam.