All Palo Alto Networks customers with a support account can use the Palo Alto Networks WildFire portal to manually submit up to five samples a day for WildFire analysis. If you have a WildFire subscription, you can manually submit samples to the portal as part of your 1000 sample uploads daily limit; however, keep in mind that the 1000 sample daily limit also includes WildFire API submissions.
Reference:
https://docs.paloaltonetworks.com/wildfire/10-2/wildfire-admin/submit-files-for-wildfire- analysis/manually-upload-files-to-the-wildfire-portal

Explanation:
https://docs.paloaltonetworks.com/sd-wan/1-0/sd-wan-admin/sd-wan-overview/sd-wan- configuration-elements

The FWDtrust is a CA certificate type capable of signing other certificates.
That means either it's a Root Certificate or Intermediate certificate. If it was a Root Certificate, then you wouldn't get that warning. That means the certificate is an intermediate and you need to import its Root Certificate.

If firewall resources are an issue, use stronger decryption for higher-priority traffic and use less processor-intensive decryption to decrypt and inspect lower-priority traffic until you can increase the available resources.
https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/decryption/prepare-to-deploy- decryption/size-the-decryption-firewall-deployment