Employee's Providents Fund Organisation [EPFO] — Not able to submit pf withdraw request

I resigned from my company 3 years back. I am studying for civil services and need the PF amount.

there is error in https://unifiedportal-mem.epfindia.gov.in/ site.
when i try to open claim (Form 31, 19, 10C &10D ) option, i get below error message.
"Your bank KYC is not digitally signed by employer, cannot proceed"

My bank KYC is done by employer. when i go to KYC section, it shows that KYC is done.

This error is their since last one year and I am feeling frustrated. I have sent various emails, called many times but no response.

I tried to google and found that this error is occurring to few users due to epfo technical glitch.