Scoring by Team:MTL

Error: FUNCTION gell1961_nhl2.getScorerLastName does not exist

FILE: /home/gell1961/public_html/sports/migameScoring.php

LINE: 40

SQL: SELECT team, scorer, period, gtime, strength FROM nhlgoals WHERE team = 'MTL' and seasonid ='20142015' and gameid = '0977' and period != 'SO' order by getScorerLastName(scorer),goalnum