Guru Gobind Singh Indraprastha University — not able to pay participation fee for ipucet counseling 2018 for code 131

Address:	Indore, Madhya Pradesh, 453331
Website:	ipuadmissions.nic.in

Sir,
After the opening of the portal for counselling registration for code -"131" and other on 8 june 2018, i am trying very hard but every time i try to pay my counselling participation fee it only
A message -"either period is over or not yet started".
I am confused, how can this be possible that counselling started on 8 june 2018 but paying participation fee period is over or not started. Please resolve this problem as soon as possible.
A prompt reply is solicited.