NQT DRC FOR TCS

Guys , I have time slot of 12 - 3:30 pm for NQT DRC
when I login , this message is showed on tab

Sorry for the inconvenience

Note:You cannot launch this assessment since you are trying to launch beyond the permitted timings. Please contact the administrator.

How will I contact the administrator ?
please help

I can’t open login link not any net work issue. Open others side in laptop open in a second . I don’t understand what is problem please help me. 1st time loging and register but exam time 5 pm then login page but not open link my exam time 5pm to 8 pm . please help me

Same has happened with me, how have you resolved the issue