Hello,
The reason is you uploaded whole theme package “TheLeader_Ecommerce_Responsive_WordPress_Theme” to the themes folder but you should overwrite old theme version with a new one.
Please watch the tutorial how to update theme correctly (it’s for Legenda theme but the process is the same):
After you overwrite the theme don’t forget to activate it in Appearance > Themes because now you have “TheLeader_Ecommerce_Responsive_WordPress_Theme” activated which contains whole package.
Thank you.
Regards,
Eva Kemp.