Sorry to hear about the issues you’re experiencing. Here are a few possibilities to consider:
Are you logged into the correct account? If you have multiple accounts or teams, please make sure you’re in the right one. Based on the screenshot you shared, it looks like you’re in Carlos’s team account. Could you double-check if that’s correct?
Have you checked the Trash? If you haven’t permanently deleted the files, they should still be in the Trash:
If you can find some file links from your browser history, we can look into their status. Please let us know how it goes.