Urgent help needed with COPR

[redstyler]

i landed last week but the officer made a mistake and did not sign the confirmation of permanent residence, though everything was printed and ok with the rest of it.

1) what does it mean, does that mean im not a landed immigrant?

2) has anyone experienced this?

3) what to do to get the correct one asap?

4) will my pr card be affected by this?

5) how do i get my SIN now because service canada refused to take it as a proof.