Import content.xml failed

When I try to import content.xml I received this error:

Failed to import pa_color Black
Failed to import pa_color Blue
Failed to import pa_color Brown
Failed to import pa_color Gray
Failed to import pa_color Green
Failed to import product_type membership_package
Failed to import pa_color Orange
Failed to import pa_color Pink
Failed to import pa_color Purple
Failed to import pa_color Red
Organizer “Kelly Clark” already exists.
Failed to import “Seasonal Membership”: Invalid post type product
Failed to import “Thick Yoga Mats”: Invalid post type product
Failed to import “Thick Yoga Mats 2”: Invalid post type product
Failed to import “Thick Yoga Mats 3”: Invalid post type product
Failed to import “Thick Yoga Mats 4”: Invalid post type product
Failed to import “Thick Yoga Mats 5”: Invalid post type product
Failed to import “Thick Yoga Mats 6”: Invalid post type product
Failed to import “Thick Yoga Mats 7”: Invalid post type product
Failed to import “Thick Yoga Mats 8”: Invalid post type product
Failed to import “Monthly Membership”: Invalid post type product
Failed to import “Auto Debit Card”: Invalid post type product
Failed to import “Single Class”: Invalid post type product
<!-- [if !supportLineBreakNewLine]-->
<!--[endif]-->

All done. Have fun!

Remember to update the passwords and roles of imported users.