Import encountered a fatal error and could not proceed. Please try again.

We had recently intergrated Zephyr Squad for our project and the project had been configured following the Zephyr Cloud Document.And the Test is available in the project.

But when we click on Import Tests from Zephyr Squads, I always see below warning.

Regardless of the warning, I tried to import the Tests following the steps and got below error: Import encountered a fatal error and could not proceed. Please try again. I cannot locate what is the fatal error itself neither how to resolve it. Can someone pls advise? Thank you heaps in advance.