Russian immigration card information is wrong.

If the entry-exit information is inconsistent with my household registration information, I need to bring the changed resident ID card, household registration book, original entry-exit certificate, change certificate and other materials to the entry-exit department in time to apply for a new entry-exit certificate.

The entry card is the proof of your legal entry. Entry card and passport are documents that foreigners should hold at the same time. Moreover, it is impossible to go through the entry formalities without an entry card.