Setup Hot Water Notification not Recieved

[JeffV]

Macos Catalina - macOS 10.15.3 (19D76)

Domoticz
Version: 4.9701
Build Hash: b47a877f
Compile Date: 2018-06-23 15:27:56
dzVents Version: 2.4.6
Python Version: None

I have added Prowl in Settings>Notifications
Made Enabled - got key - tested - Log Shows
2020-01-31 17:50:16.885 Status: Notification: Domoticz test
2020-01-31 17:50:17.419 Notification sent (prowl) => Success
2020-01-31 17:50:17.420 Active notification Subsystems: prowl (1/13)
Notification Received by my IPhone

On Temperatures
Hot Water
Setup Notification
Type - Temperature
When - Less
Value - 25 - C
Priority - Normal
Message - Water below 25
Selection Items all red except for
Email - Green
Prowl - Green

Table shows
2020-02-01 00:00:00 0 28
2020-02-01 00:05:00 0 23
2020-02-01 00:10:00 0 23
2020-02-01 00:15:00 0 23
2020-02-01 00:20:00 0 23
Log
2020-02-01 00:04:41.062 (Test) fetch data from server
2020-02-01 00:05:41.781 (Test) fetch data from server
2020-02-01 00:06:42.586 (Test) fetch data from server
2020-02-01 00:07:43.496 (Test) fetch data from server
2020-02-01 00:08:44.271 (Test) fetch data from server
2020-02-01 00:09:44.959 (Test) fetch data from server
2020-02-01 00:10:45.820 (Test) fetch data from server
2020-02-01 00:11:46.575 (Test) fetch data from server
2020-02-01 00:12:47.453 (Test) fetch data from server
2020-02-01 00:13:48.152 (Test) fetch data from server
2020-02-01 00:14:48.873 (Test) fetch data from server
2020-02-01 00:15:49.655 (Test) fetch data from server
2020-02-01 00:16:50.373 (Test) fetch data from server
2020-02-01 00:17:51.189 (Test) fetch data from server
2020-02-01 00:18:52.008 (Test) fetch data from server
2020-02-01 00:19:52.777 (Test) fetch data from server
2020-02-01 00:20:53.774 (Test) fetch data from server
2020-02-01 00:21:54.552 (Test) fetch data from server

What have I done Wrong

[JeffV]

More Info.
Log File : -
2020-01-31 09:22:55.710 Status: PluginSystem: Failed dynamic library load, install the latest libpython3.x library that is available for your platform.
have Google searched but failed to find anything on the above

Is this causing the problem
(Macosx)