"code": "ErrorReadingTaxProfileEntry",
	"target": "Unknown",
	"details": [
			"code": "ErrorReadingTaxProfileEntry",
			"number": 1903,
			"message": "The tax profile entry '-0-' could not be read.",
			"description": "The tax profile entry may be missing, corrupt, using an unsupported compression method, or containing the incorrect type.",
			"faultCode": "Client",
			"helpLink": "",
			"severity": "Error"

This indicates that AvaTax was unable to parse your tax profile entry. It could be that the company tax profile is corrupt, incorrect type, or missing. Please check the company tax profile and try your request again.

Note also that the Tax Profile Import API is only available to Technical Support Administrator roles.