The actual error on the pop up is
"Record is Unavailable"
"The requested record was not found or you do not have sufficient permissions to view it."
But if I go to Chrome, I can view it without issue.. Same way, same record, etc.
ion: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: System.Web.HttpUnhandledException: Microsoft Dynamics CRM has experienced an error. Reference number for administrators or support: #364BDA5BDetail:
<OrganizationServiceFault xmlns:i="www.w3.org/.../XMLSchema-instance" xmlns="schemas.microsoft.com/.../Contracts">
<ErrorCode>-2147220970</ErrorCode>
<ErrorDetails xmlns:d2p1="schemas.datacontract.org/.../System.Collections.Generic" />
<Message>System.Web.HttpUnhandledException: Microsoft Dynamics CRM has experienced an error. Reference number for administrators or support: #364BDA5B</Message>
<Timestamp>2017-04-18T15:46:44.3965321Z</Timestamp>
<ExceptionSource i:nil="true" />
<InnerFault>
<ErrorCode>-2147220969</ErrorCode>
<ErrorDetails xmlns:d3p1="schemas.datacontract.org/.../System.Collections.Generic" />
<Message>systemform With Id = db05bf2e-dc00-4ccf-9181-55b943cda59a Does Not Exist</Message>
<Timestamp>2017-04-18T15:46:44.3965321Z</Timestamp>
<ExceptionSource i:nil="true" />
<InnerFault i:nil="true" />
<OriginalException i:nil="true" />
<TraceText i:nil="true" />
</InnerFault>
<OriginalException i:nil="true" />
<TraceText i:nil="true" />
</OrganizationServiceFault>