TFA failed at Initializing Defect Types...

[JianLi-RH]

Describe the bug
RP instance: https://reportportal-openshift.apps.ocp-c1.prod.psi.redhat.com/

08-28 21:26:28.754  Running tfacon to classify failures in launch 427851
08-28 21:26:28.754  tfacon run -v -r
08-28 21:26:28.754  TFA config file after classifying:
08-28 21:26:28.754  --------------------------------------------------
08-28 21:26:28.754  tfacon  1.1.1
08-28 21:26:28.754  Copyright (C) 2021, Red Hat, Inc.
08-28 21:26:28.754  -------------------------------------------------
08-28 21:26:28.754  
08-28 21:26:28.754  
08-28 21:26:28.754  LaunchID: 	 427851
08-28 21:26:28.754  LaunchUUID: 	 
08-28 21:26:28.754  LaunchName: 	 
08-28 21:26:28.754  ProjectName: 	 prow
08-28 21:26:28.754  AuthToken: 	 ****
08-28 21:26:28.754  RPURL: 	 https://reportportal-openshift.apps.ocp-c1.prod.psi.redhat.com/
08-28 21:26:28.754  Client: 	 &{<nil> <nil> <nil> 0s}
08-28 21:26:28.754  TFAURL: 	 [https://dave.corp.redhat.com:443/models/5f248eb11e43c7000602300b/latest/model](https://dave.corp.redhat.com/models/5f248eb11e43c7000602300b/latest/model)
08-28 21:26:28.754  REURL: 	 [https://dave.corp.redhat.com:443/models/63e560e9a0e00f32ceb5572e/latest/model](https://dave.corp.redhat.com/models/63e560e9a0e00f32ceb5572e/latest/model)
08-28 21:31:50.180  
08-28 21:31:50.180  --------------------------------------------------
08-28 21:31:50.180  tfacon  1.1.1
08-28 21:31:50.180  Copyright (C) 2021, Red Hat, Inc.
08-28 21:31:50.180  -------------------------------------------------
08-28 21:31:50.180  
08-28 21:31:50.180  
08-28 21:31:50.180  Initializing Defect Types...
08-28 21:31:50.180  
08-28 21:31:50.180  Classification failed with exit code CompletedProcess(args=['tfacon', 'run', '-v', '-r'], returncode=2, stdout=b'--------------------------------------------------\ntfacon  1.1.1\nCopyright (C) 2021, Red Hat, Inc.\n-------------------------------------------------\n\n\nInitializing Defect Types...\n')

Expected behavior
Classify failures successfylly.