Hi,
If the files were deleted and it is not beyond 93 days period you can recover, can you please check in the deleted items. And also check this MS article on the steps to recover the files - https://support.microsoft.com/en-gb/office/restore-items-in-the-recycle-bin-that-were-deleted-from-sharepoint-or-teams-6df466b6-55f2-4898-8d6e-c0dff851a0be
Hope this helps.
JS
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