SD-WAN Monitoring shows no data under Links and App Performance.

• SD-WAN Configuration with SD-WAN VPN tunnels up and running with SD-WAN Plugin 3.0 and above.
• Firewall forwarding the data to Panorama.
• GUI: Panorama > SDWAN > Monitoring shows No Data under Link and App Performance. 

• Panorama managed Firewalls
• PAN OS 10.2 and above.
• SD WAN Plugin 3.0.2 or less.

• The issue is caused due to plugin infra changes.
• Refer below commands to confirm following,
  • show sdwan path-monitor stats >>>>  To confirm if sdwan tunnels are up (Panorama CLI).
  • show deviceconfig setting management device-monitoring >>>> To confirm device monitoring is enabled on the firewall (config mode firewall CLI).
  • show logging status >>>> To confirm that firewall is forwarding the logs to Panroama (Firewall CLI).
• Once the outputs are verified, check for the error messages is plugin_sd_wan.log ("less mp-log plugin_sd_wan.log" on Panorama).

0700 DEBUG: No updates to process
0700 DEBUG: Traceback (most recent call last):
  File "/installed/sd_wan/scripts/op/get_apps_links_status.py", line 92, in <module>
    num_clusters = int(sdb.get_dict_key("cfg.sdwan.cluster_details", "cluster_count"))
TypeError: int() argument must be a string, a bytes-like object or a number, not 'NoneType'
0700 ERROR: Encountered exception while getting app/link status: <class 'TypeError'> int() argument must be a string, a bytes-like object or a number, not 'NoneType'
-0700 DEBUG: No inline result files for SDWAN