Javascript encryption doesn't work

The mail-adresses are ecrypted (Javascript), but clicking on them dowsn’t work. So I deactivatd and reactivated this plugin – nothing. Then I switched to Unicode encription. That worked, but doesn’t seem to be secure enough, because the mail-adresses still can be copied from the source code. For now I’ll leave the settings to Unicode instead of deactivating this plugin. This plugin is still a must have, please fix. ??

https://www.ads-software.com/extend/plugins/cryptx/