U r playing an illegal formation. U need to have at least 1 player on eack flank(extreme side of the pitch) but not more than 2. At least 3 defenders. Atleast 1 ST. Atleast 1 DMC or MC. At least 4 players ahead of the Half Line. If u miss out on any one of these, u will have an ilegal formation and 20% possession. See more on this thread-

http://forum.topeleven.com/formation...ion-rules.html