The Windows Installer technology uses Msiexec.exe for installing MSI and MSP packages. AxCrypt app setup files are .exe and i think, MSIExec will not support the exe files.
You can just double click the AxCrypt setup.exe files to start the AxCrypt installation process.
AxCrypt 2.x is written in C#/.NET.(.NET is required to run AxCrypt software). Please check dot net framework 4.5 or above installed in your system? If not please install the same. You can download the dot net framework here, https://www.microsoft.com/en-us/download/details.aspx?id=30653
It might be happened because of some firewall/antivirus or other third-party applications are blocking the AxCrypt app. So please check the firewall or other software settings.
Still, you are not able install the app, please provide more details and complete error report to email@example.com.
For complete error report, https://www.axcrypt.net/blog/send-complete-error-report/ .