Improper Format 76561198078657461

Scammer (probably not the main account):
|steamID: Shidaro xD
|steamID32: STEAM_0:1:59195866
|steamID64: http://steamcommunity.com/profiles/76561198078657461
|customURL:
|steamrepURL: http://steamrep.com/profiles/76561198078657461

Victim:
|steamID: boka_super_boy
|steamID32: STEAM_0:1:36119773
|steamID64: http://steamcommunity.com/profiles/76561198032505275
|customURL:
|steamrepURL: http://steamrep.com/profiles/76561198032505275

Where is the scam?

i think he haked me , and stole my 2 items , i show it in the screen

i hope you can help me , i also asked steamsupport for help

did i all right ? and may be i have to write more information ?

We are missing too much information such as a screenshot of the chat and a actual backstory as it looks like a normal trade to me (note that i do not play Dota 2)