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.
Please check your operating system has any pending updates. If any, please update and restart the system.
Then try to install the latest version(https://www.axcrypt.net/download/ ) in your system. Hope, your problem will get resolved.
Still, you are asking any issues, please provide more information about the issue and write a mail to firstname.lastname@example.org.
You can also send the complete error report to troubleshoot the issue. Please follow the detailed instructions to take the complete error report: https://www.axcrypt.net/blog/send-complete-error-report/
Keep AxCrypting……Have a Nice Day….)