Sony has suspended Xperia 1 VII sales in Japan due to shutdown and reboot issues. Affected users advised to update software or contact support for help.

Sony has halted sales of the Xperia 1 VII in its home market, Japan, due to widespread "weird shutdown issues." More details ...

It sounds like the Xperia 1 VII has got a nasty bug that's virtually bricking the phone, so Sony has had to pause shipments.