SyntaxError
Example
{
	"code": "SyntaxError",
	"target": "Unknown",
	"details": [
		{
			"code": "SyntaxError",
			"number": 19,
			"message": "Incorrect $filter parameter.",
			"description": "Unexpected token '-0-' in the filter. Please refer https://developer.avalara.com/blog/2016/10/06/filtering-in-rest-v2 to correct your filter",
			"faultCode": "Client",
			"helpLink": "http://developer.avalara.com/avatax/errors/SyntaxError",
			"severity": "Error"
		}
	]
}
Explanation

An unexpected token (found at position -0- of the error’s description) was found in the $filter parameter of the query. Check out this guide for filtering in REST to find the correct syntax for the $filter.