Troubleshooting Tip: How to fix utilities connector action 'Create an attachment from file'

After upgrading FortiSOAR to the 7.6.4 version, if the utility connector action 'Create an attachment from file' fails with the following Error:

CS-INTEGRATION-5: Error occurred while executing the connector action. ERROR :: 400 Client Error: Bad Request for url: https://localhost/api/3/files :: {'type': 'TypeError', 'message': \"Internal Server Error. Check log 'prod.log' for more details\"} :: Url: https://localhost/api/3/files Call for URL: https://localhost:9595/integration/execute/ failed with status code 400 \n

• Verify that the value configured in the field 'Restricted File MIME Types' can be found under Settings -> Application configuration.
• If no value is configured, then it will pass null and cause a problem for the connector action.
• Configure at least one value to restrict the file type and save to fix the issue.

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