Same problem on ipschool.spb.ru, opencity.spb.ru, artera.spb.ru, graft.spb.ru, and vvs .spb.ru.
The Edge certificate issued by Google Trust Services just expired and no renewal is issued.
These domains are using Universal SSL for years, everything was just fine, no configuration changes.
It seems like Google Trust Services banned *.spb.ru specifically (for the reason unknown). I have few sites in *.pp.ru, *.org.ru, *.net.ru, and in *.msk.ru. Google Trust Services works fine for them, certificates have been updated successfully just few days ago.