UNUSUAL GAME ACTIVITY HAS BEEN DETECTED, THIS ACCNT

PLEASE HEL ABOUT THIS WHEN IM DC AND TRY TO LOG IN IT APPEARS " UNUSUAL GAME ACTIVITY HAS BEEN DETECTED, THIS ACCOUNT" PLS KINDLY CHECK ABOUT MY PROBLEM IM NOT USE ANY BAD ACTIVITIES. IM WAITING FOR YOUR RESPONSE AND THANK  AND MERRY XMAS ADMIN