When using online banking to pay Alipay Tenpay for the U Shield problem of China Industrial and Commercial Bank, "Your data signature is wrong, please submit it or contact the local bank-100 19" was displayed. At present, I can only solve this problem by replacing or redoing the system and then reinstalling the certificate driver and control program. The reason should be that the system files involved in digital certificate authentication are damaged or missing (caused by antivirus, system or browser update and firewall forced repair), and the system cannot recognize the digital certificate in the U shield.