An error occurred while getting user profile

[solomad]

Please, help me. After today Steam maintenance when Bot make a trade appears this error:

 

## An error occurred while getting user profile: Error: HTTP error 500
D:\Downloads\Bot\Bot 26.04.17\index.js:977
                client.chatMessage(USER.steamID, "An error occurred while getting your profile (to comment).");
                                       ^

TypeError: Cannot read property 'steamID' of undefined
    at community.getSteamUser (D:\Downloads\Bot\Bot 26.04.17\index.js:977:40)
    at D:\Downloads\Bot\Bot 26.04.17\node_modules\steamcommunity\classes\CSteamUser.js:18:4
    at SteamCommunity._checkHttpError (D:\Downloads\Bot\Bot 26.04.17\node_modules\steamcommunity\components\http.js:110:3)
    at Request._callback (D:\Downloads\Bot\Bot 26.04.17\node_modules\steamcommunity\components\http.js:50:61)
    at Request.self.callback (D:\Downloads\Bot\Bot 26.04.17\node_modules\request\request.js:188:22)
    at emitTwo (events.js:106:13)
    at Request.emit (events.js:191:7)
    at Request.<anonymous> (D:\Downloads\Bot\Bot 26.04.17\node_modules\request\request.js:1171:10)
    at emitOne (events.js:96:13)
    at Request.emit (events.js:188:7)

[SunriseM]

USER variable is undefined. Confirm is the correct name and write your code please