I have a answer from support PA.
Sounds like :
"Is over 5,000 logs were recorded on the device disk, because there was a problem with transferring them to Panorama as a result of performance problems - the logs per second parameter was exceeded"
This is like a bufor.
Since then I have no problems with loging to Panoram and this erorr does not appear to me.
We had the same issue on our PA-5220 and we found this thread and ran the debug command "debug software restart process log-receiver" and it fixed the issue. Now all of our traffic logs forwards to Panorama and prior to doing this only System Logs were being forwarded.
Also to keep note is that after running the command the Alert kept coming and after check the raw logs locally it was way over teh threshold of 5000 but slowly coming down. Once it will go lower it will stop the alerts.
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