iPhone 16 Pro Stuck on Restore Error 26.4

I am using an iPhone 16 Pro 128 GB and since this morning, 2 November, my phone has been completely blocked by a restore error showing code 26.4. While trying to restore the device, this error appeared and now I cannot access anything on the phone or open any applications at all. This is the first time I have ever experienced such a problem with this phone. I am currently in New York, United States, and I have not been able to contact Apple Support or visit a store through the device itself because it is fully locked by this error. I request that Apple help me complete a successful restore so that my iPhone 16 Pro 128 GB becomes usable again as soon as possible, and provide any necessary technical support to resolve error 26.4.