thank you for the purchase and your message.
I’m sorry for the trouble, but that’s not a problem of the theme, thats a WordPress problem. The reason for the issue is the name of your theme folder, please take a look at the theme folder, I’m sure the theme name is something like that:
WordPress can’t handle too long theme folder names. Just rename the theme folder to “mytheme” or the themename, than all works.
If you dont know how to rename the folder (best way is with a ftp software), just let me know it, than we can do it for you.
Once again: thats not a problem of the theme!