You need to get it corrected
now...COPR is a very important document, you will need it till the time of Citizenship, all details on it must be 100% correct...and remember the onus is on you to get it corrected...
Raise a CSE here->
https://secure.cic.gc.ca/enquiries-renseignements/case-cas-eng.aspx?mission=new%20delhi
informing them about the errors in your spouse's COPR and request for a correction..attach a Scanned copy of the COPR...they will give u clear instructions...most probably you would have to surrender the old COPR and they will issue a new one...do it now don't delay, it should be completed in 10-15 days...Good luck!!
Thanks buddies, hope u guys get ur Visa and fly soon...+1 reciprocated...