This is an older error that Fortigate was giving when it had issues with IPS engine.
How to fix the CFG_CMDBAPI_ERR error?
To fix the issue you can one of the following 2 things:
1. Upgrade the Fortigate to the latest version (request a new version from Fortinet support)
2. Reboot the IPS of the Fortigate (this is was it causing the issue). Below is the command(through CLI):
diagnose test application ipsmonitor 99 Â Â
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