If you cannot view the uploaded files in your browser after uploading, several issues might be causing the problem:
File Permissions: The files or directories may not have the correct permissions. Ensure that directories have permission 755 and files have 644.
File Location: Confirm that the files are uploaded to the correct directory on your server. Double-check the file paths to ensure they match the URLs you are trying to access.
Index File: If you are trying to view a directory, make sure it contains an index.html, index.php, or another default index file. Without this, the server might not display the directory contents.
htaccess File: Check the htaccess file for any rules that might be restricting access to the files or directories.
Server Configuration: The server configuration might be preventing access. Verify that your server settings allow access to the directory and files you are trying to view.
Browser Cache: Clear your browser cache to ensure you are not viewing an old cached version of the page.
Error Logs: Review your server's error logs for any specific error messages that could provide more information about why the files are not accessible.
Hosting Provider Settings: If you are using a hosting provider, check their control panel for any security settings or restrictions that might be blocking access to your files.