1. Check whether your online banking software is in the trust list of antivirus software. If not, please add it as trust. 2. Close the online banking, uninstall and reinstall the software corresponding to the U shield; If this happens suddenly, just restart the computer; There is nothing wrong with the website now. Please do the following: (1) Open IE browser, select Tools menu-Internet Options-Advanced tab-click Restore Default Settings, and then click OK to close all IE browser windows; (2) Open IE browser, select Tools menu-Internet Options-General tab-Check the newer version of the saved webpage in the temporary Internet file settings, and choose to check every time you visit this page. Click "Delete files" in the temporary Internet file settings, tick before "Delete all offline content", and click OK to close the dialog box and close all IE windows; (3) Open IE browser, select Tools menu-Internet Options-Security tab, select Internet in the window "Please set security settings for web pages in different areas (Z)", then select custom level, and select "Download signed Activex controls" and "Activex plug-ins" in the window.