Files upload failure

Hi Ting, 

Welcome to the Box Community!

Sorry to hear about the trouble with your upload, I'm happy to help!

If you are having trouble uploading files or folders, please try the following troubleshooting steps:

• Please ensure your web browser is the latest version of Chrome, Firefox, Safari, or Edge
• Try clearing your browser's cache. If this does not resolve your issue, please proceed to the next step.
• Verify that you are using one of our recommended operating systems.
• Verify that the file's name is valid. Box only supports file or folder names that are 255 characters or less. File names containing non-printable ascii, "/" or "\", names with leading or trailing spaces, and the special names “.” and “..” are also unsupported. Box supports only Unicode Basic Multilingual Plane (BMP) characters in file and folder names.
• Verify that the file or folder's path on Windows machines is under the 255-character Windows limitation. Folder paths that exceed 255 characters may truncate the content's name before uploading to Box.
• Make sure you are uploading files smaller than the maximum for your account type. To determine your maximum, click on your initials in the top-right corner of the page and select Account Settings. Then, click on Account and your Max file size will be listed under Account Details.

More tips can be found in this article: https://support.box.com/hc/en-us/articles/360044196773-Troubleshooting-Uploads-to-Box 

Thanks for reaching out and let us know how else we can help!

Regards, 

This issue still persists after doing all troubleshooting steps above.