The "schedule" button is not working. Anyone can help to resolve JIRA ticket TCCS-55677?

Hi Team, I came across a problem that I couldn’t schedule CKA exam in your learning portal. I have finished the first three steps but the schedule button is still not working. I opened the ticket last month and this issue have been there for nearly a month. Would you please help me to check this issue? I have spent a lot of time and energy on this issue. The ticket number is TCCS-55677. Would you prfioritize this issue for me? Thanks.