eBay shipping labels are currently down. eBay is aware and working to fix it; there is no ETA yet though I expect they'll be back up soon since there are reports about sellers having intermittent success.
The system status board will be updated when the problem is fixed:
https://www.ebay.com/sts
If anybody needs labels urgently, you can purchase anything but eBay Standard Envelope elsewhere. pirateship.com is a good option for USPS and UPS services.
