The second cause suggests that the application in question has been altered from its original form, possibly introducing security vulnerabilities or breaking its integrity, which prevents it from functioning correctly.
This error essentially means the software's security check has failed. It cannot find a valid digital signature (the "Root Certificate") that it expects to see before it allows the program to launch. Why is this happening?
the files (ensure your antivirus is off during extraction). Reinstall the certificate first, then the software. A Quick Note on System Security
The following steps are commonly used to resolve this specific certificate error: Install Guide for R2R Silk Emulator | PDF - Scribd