Apologies for that.
It seems that the new installer was not uploaded properly to our site. We will get that sorted shortly.
For now you can download the installer for the latest update here - https://cdn.shedworx.com/jaksta/beta/2.2.5_272/JakstaScreenRecorder.pkg
Please let me know if you have any further problems with your installation.
It is not possible to download the latest version 2.2.5 of JSR. Always one downloads the version 2.0.0.