Two people in our stake reported a problem so I took the liberty to check it myself and yes, I found that the link seems to be broken. Please check it out.
Thank you!

https://www.lds.org/youth/fsy/secure/re ... country=ph
I'd ask the ward clerk or the ward membership clerk to make sure your record is in the ward. I'd also check to make sure the MRN on your account matches your membership record.