@JORGE ESPARZA FIGUEROA@Jorge Esparza Figueroa -Can you please share the complete error message as well as the screenshot?
-Also, try to upload same files in Azure Storage explorer tool and share the results.
Here are the common errors and mitigation steps: https://learn.microsoft.com/en-us/troubleshoot/azure/azure-storage/blobs/connectivity/invalid-blob-or-block-content-or-invalid-block-list