Post functions do not work correctly

Post functions do not work correctly.

Steps to Reproduce:

• Install Jira 8.3.0
• Install Xporter 6.9.0
• install Xray last version
• Create a post function 
• Execute the action to trigger the post function created before.

Expected Result:

The action should be executed without any problem

Actual Result:

The final report is a report with error logs.