Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $

[jjrobotham]

We are receiving this error:

[ERROR] Failed to execute goal com.contrastsecurity:contrast-maven-plugin:2.0:verify (verify-with-contrast) on project content-receiver-service: 
Execution verify-with-contrast of goal com.contrastsecurity:contrast-maven-plugin:2.0:verify failed: java.lang.IllegalStateException: 
Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $ -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal com.contrastsecurity:contrast-maven-plugin:2.0:verify 
(verify-with-contrast) on project content-receiver-service: Execution verify-with-contrast of goal com.contrastsecurity:contrast-maven-plugin:2.0:verify failed: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 path $

This is when using the maven plugin to connect to Our Contrast Security
Following the docs here: https://docs.contrastsecurity.com/tools-build.html#maven

Our setup:
Maven:

Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /usr/local/Cellar/maven/3.6.3_1/libexec
Java version: 1.8.0_251, vendor: Oracle Corporation, runtime: /Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home/jre
Default locale: en_GB, platform encoding: UTF-8
OS name: "mac os x", version: "10.15.4", arch: "x86_64", family: "mac"
julianrobotham@Julians-MacBook-Air content-receiver-service % 

Java:

java version "1.8.0_251"
Java(TM) SE Runtime Environment (build 1.8.0_251-b08)
Java HotSpot(TM) 64-Bit Server VM (build 25.251-b08, mixed mode)