Irctc — Not able to click the Date of journey button.

Address:

Mysore, Karnataka

Sir, I am a customer of IRCTC for the last few years. I regularly book the ticket through irctc E-Tickets. Now for the last few days, I am unable to book my tickets through irctc, though I open the site through my ID and My Password. But I am unable to click the Journey date for which I don't know the reason. Kindly help me. I wonder Is there any limitations to book the tickets??? If so this message is not showing in the site which I opened. Kindly help me to sort out this problem. Thank You, G.Venkateswaran.