CKA lab is not accessible

Hi,
I have taken a course on Udemy for CKA and previously do hands-on on KodeKloud as Udemy directed to KodeKloud. But, now the labs are not accessbile and getting below error. Kindly help me to get rid out of it.

I am having same issue, dont know where to add the coupon code

I am also not accessible stuck after added coupon code

@bhadoria1998 @Bharat-Kothari @Shaban-Khan , Please follow the steps as provided here.

Please write to [email protected] if the issue still persists.