You item title exceeds eBay's restrictions of 80 characters for the title; please fix the title and submit again. You'll notice there's a character ticker to let you know when you're at the correct length. 

You can also turn off the setting in your eBay Settings in SellerChamp to give this error. However, this will cause the title to truncate at 80 Characters, cutting off potentially vital information.  It's here in your settings as shown below:

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