AISI Assistant does not support encrypted ipa. The solution is as follows:

1. Open IE browser, select Tools-Internet Options-Advanced tab in the menu, find the "Browse" option, cancel the "Always send the URL in UTF-8" option, and then select "OK" to save the settings;

2. According to the file attribute name, it can be judged that the corresponding software is installed;

3. In the process of opening the attachment, the connection with the server failed due to the network speed. You can choose another time period or change the network environment, and then try opening it again.