Exchange Online Powershell - JSON Error

Hi all,

I'm currently attempting to extract Auditlog records via Powershell, however I'm regularly getting errors in relation to a JSON conversion error. I am using a slightly modified version of this script. The small changes relate to date periods, and an addition of a User variable. I'm currently running EXO v3.0.0 too. The error found in the Powershell window along with the error within the cmdlet log can be found below.

Powershell window error

ConvertFrom-Json : Invalid JSON primitive: .
At C:\Users\...\AppData\Local\Temp\tmpEXO_0q1mvkwr.0ub\tmpEXO_0q1mvkwr.0ub.psm1:576 char:35
+ ... etailsToPSObject = ConvertFrom-Json $ErrorObject.ErrorDetails.Message
+                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [ConvertFrom-Json], ArgumentException
    + FullyQualifiedErrorId : System.ArgumentException,Microsoft.PowerShell.Commands.ConvertFromJsonCommand

cmdlet Error Log message

Invalid JSON primitive: .-   at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializePrimitiveObject()	   at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth)	   at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input  Int32 depthLimit  JavaScriptSerializer serializer)	   at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer  String input  Type type  Int32 depthLimit)	   at Microsoft.PowerShell.Commands.JsonObject.ConvertFromJson(String input  ErrorRecord& error)	   at Microsoft.PowerShell.Commands.ConvertFromJsonCommand.ConvertFromJsonHelper(String input)	   at System.Management.Automation.CommandProcessorBase.Complete();

I'm assuming the error relates to the EXO module itself, but I'm unsure.