error occurred while creating challan

as I am creating challan then showinh mobile no. is invalid

some fields are not showing in my portal

non core fields
form 14
etc.

also not showing mobile no. of practitioner but when Id was activated then OTP came on practitioner mobile.

so why these problems happened

and
how I will create the challan.. tax payment is also pending due to non creation of challan

regards
Rajinder Kumar