Hello! I was making games in construct 2 and exported to HTML 5 and created a zip folder but when I uploaded it I got the following error: "There was a problem loading your project - Archives contains filename with non UTF-8 Encoded characters - please try deleting the ZIP file and uploading another one"... how do I fix this? Please, can someone help me! 

This means that your game has files with non-ASCII filenames, and that the tool that you are using to zip them up is using an encoding other than UTF-8.  There are three ways to fix this:

• Don't use non-ASCII filenames.  Stick to the basics: a-z, 0-9, "-", "_", and ".", no accents or other diacritics.
• Find a better tool to zip up the files that uses UTF-8.  Unfortunately I can't recommend any specific tool.
• Use butler to upload your project, which will presumably handle the UTF-8 encoding for you.