we are moving from Zephyr server to zephyr cloud, but facing issues while restoring back up.

Yesterday, we have restored Jira server complete backup on jira Cloud including Zephyr test cases, cycles etc.
Then we installed trial version of Zephyr cloud on jira Cloud.After that I have checked anyone test case but cant find Test cases steps, result etc data. even cant find Test option on dashboard header.
Please suggest work arround.
Is Jira with Zephyr server to Cloud migration possible?

Regards,
Kapil