Hello Aspirant,

You need not to worry this issue. There might be some technical error or there may be network issue which is causing this problem. Please follow the given methods :-

• Try to refresh the tab again and again.
• Close all tabs and restart it.
• Open the tab in desktop mode or on desktop.
• Once recheck your details which you are entering

If this issue still continues than contact to the respective authority.

I hope this information helps you.

Good Luck!!