When your premium plan ends, your account will be downgraded to free. Free users can save up to 12 video projects online, so your exceeded video projects will be locked temporarily and can't be opened and edited unless you resubscribe. They won't be deleted, please rest assured.
Your uploaded local files will be deleted from your Cloud Space 3 months after your subscription expires unless you resubscribe. When your local files are removed, you need to relink them to recover your previous video projects.