Error message help?

[Haddez]

Hey,
I was going to a rotation match on Pokemon White and every time I search for a game on GTS I get the message... 'There was a problem with your pokemon and they are unable to participate' any help?

My team (All level 100) -

Machamp

Substitute
Dynamic Punch
Stone Edge
Thunderpunch

Umbreon
Toxic
Shadow Ball
Payback
Wish

Gengar
Disable
Shadow ball
Substitute
Focus Blast

Farfetch'd
Swords Dance
Return
Revenge
Brave Bird

Lanturn
Scald
Thunder Wave
Volt Switch
Ice Beam

Arcanine
ExtremeSpeed
Flare Blitz
Close Combat
Crunch

 

[wolf]

Ask in the BW Quick Questions thread, since it's related to the games themselves. By the way though, it generally means that at least one of your Pokémon are hacked. If any of them are traded, you could have been given a hacked Pokémon.