in system.log:
Aug 28 19:54:58 MyiMac com.apple.xpc.launchd[1] (com.securax.zoiper5.3952[2132]): Service exited with abnormal code: 1
Hello,
This unfortunately only shows that something has failed. If this happens when you try to run the installer, simply remove the download and re-download it again.
It happens when I trying to start Zoiper5.