Can you please elaborate more on the issue that you are getting while printing challan form. Keep one thing clear that the last date to generate challan was June 11, 2020.
The deadline of June 11, 2020, for those who applied online on or before June 05, 2020, and did not pay their fee.
If you are generating the challan form for admission purposes then it is not available now. But, if you are generating for any other resource then let us know, we are here to assist you.