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I'm sorry to hear that you're receiving this error. The code is a generic error, so some basic troubleshooting would be needed to help drill down to the issue. Please make sure that the address to which you're shipping is formatted correctly and isn't too long. Please also check your own return shipping address for the same things. If everything there checks out, please contact customer service for further troubleshooting and/or to ensure that the problem is reported to technicians if there's something wrong on our end or the shipping company's end.
I hope this helps!
Had this issue as well. I was in multi order shipping. I went in and found an address that looked strange. I unchecked that order and it let me print the rest. Will follow up with customer to get correct address for the one with an issue .