This should be because there is something wrong with your certificate and control, and it has not been downloaded or set completely. So your u shield can't be used. You can delete all the plug-ins of ICBC on your computer first. Log in to ICBC official website, enter personal online banking, and download and update security certificates and controls again. After the installation is completed, click ICBC Online Banking Assistant: Installation Wizard and make the settings according to the prompts. Just restart the computer.