How to use the error. function in error

w["element."]="11*2,15*1";
w["els"]="2*1,9*7";
w["email"]="9*1";
w["en"]="2*1,6*3,9*4";
w["en."]="6*1";
w["enabl"]="6*1";
w["enable.stem"]="6*1";
w["endors"]="2*1";
w["engin"]="5*1,10*1";
w["engine."]="10*1";
w["english"]="1*1,6*1,9*3,10*1,13*1";
w["englishstemm"]="9*1";
w["environ"]="0*1,2*1,6*5";
w["equalsignorecas"]="9*3";
w["error"]="11*2";
w["error."]="11*2";
w["etc"]="1*1,3*1,6*2,10*1";
w["etc."]="1*1,3*1,6*3,10*1,15*1";
w["event"]="5*1";
w["ex"]="1*1";
w["ex:"]="1*1";
w["exact"]="9*1,16*1";
w["exampl"]="5*6,6*5,7*1,9*1,15*1";
w["example."]="9*1";
w["example:"]="6*4";
w["example 1"]="7*5";
w["example 1. exampl"]="7*5";
w["example 2"]="9*5";
w["example 2. add"]="9*5";
w["example 3"]="9*5";
w["example 3. initi"]="9*5";
w["except"]="5*1";

w["element."]="0*2,15*1";
w["els"]="9*1,10*7";
w["email"]="10*1";
w["en"]="8*3,9*1,10*4";
w["en."]="8*1";
w["enabl"]="8*1";
w["enable.stem"]="8*1";
w["endors"]="9*1";
w["engin"]="3*1,6*1";
w["engine."]="6*1";
w["english"]="2*1,6*1,8*1,10*3,14*1";
w["englishstemm"]="10*1";
w["environ"]="7*1,8*5,9*1";
w["equalsignorecas"]="10*3";
w["error"]="0*2";
w["error."]="0*2";
w["etc"]="2*1,5*1,6*1,8*2";
w["etc."]="2*1,5*1,6*1,8*3,15*1";
w["event"]="3*1";
w["ex"]="2*1";
w["ex:"]="2*1";
w["exact"]="10*1,12*1";
w["exampl"]="3*6,8*5,10*1,13*1,15*1";
w["example."]="10*1";
w["example:"]="8*4";
w["example 1"]="13*5";
w["example 1. exampl"]="13*5";
w["example 2"]="10*5";
w["example 2. add"]="10*5";
w["example 3"]="10*5";
w["example 3. initi"]="10*5";
w["except"]="3*1";

w["element."]="0*2,15*1";
w["els"]="9*1,10*7";
w["email"]="10*1";
w["empti"]="8*1";
w["enabl"]="0*1,2*1,3*1,4*1,5*1,6*1,7*1,8*2,9*1,10*1,12*1,13*1,14*1,15*1";
w["enable.stem"]="8*1";
w["endors"]="9*1";
w["engin"]="3*1,6*1";
w["engine."]="6*1";
w["english"]="2*1,6*1,8*1,10*3,14*1";
w["englishstemm"]="10*1";
w["enjoy"]="0*1,2*1,3*1,4*1,5*1,6*1,7*1,8*1,9*1,10*1,12*1,13*1,14*1,15*1";
w["environ"]="8*4,9*1";
w["equalsignorecas"]="10*3";
w["error"]="0*2";
w["error."]="0*2";
w["etc"]="2*1,5*1,6*1,8*1";
w["etc."]="2*1,5*1,6*1,8*3,15*1";
w["event"]="3*1";
w["ex"]="2*1";
w["ex:"]="2*1";
w["exact"]="10*1,12*1";
w["exampl"]="3*6,8*5,10*5,13*13,15*1";
w["example."]="10*1";
w["example:"]="8*4";
w["except"]="3*1";
w["exist"]="2*1,3*1";
w["exist."]="3*1,8*1";
w["explain"]="4*1";
w["expos"]="6*1";
w["express"]="3*1";
w["ext"]="10*2";

w["environment."]="338*1";
w["environment:"]="2*1";
w["environments."]="26*1";
w["epend"]="42*1";
w["epoch"]="136*2";
w["epub"]="280*1,354*2";
w["equal"]="27*1,62*1,215*3,254*3,263*2,348*1,353*3,382*1,402*1,429*1";
w["equir"]="174*1";
w["equival"]="42*2,69*1,146*1,334*2,344*1,402*2,483*1";
w["er"]="42*1";
w["ere"]="42*1,178*1,365*1";
w["erform"]="42*1";
w["errhandl"]="18*1";
w["errhandler.php"]="18*1";
w["error"]="73*3,81*3,94*1,111*1,118*2,181*2,200*5,250*1,255*2,257*2,268*1,277*2,294*1,295*1,317*1,369*1,386*1,389*3,392*1,403*1,404*2,433*1,440*1,445*1,447*3,456*1,475*1,486*3,504*1,518*2";
w["error."]="73*1,181*1,200*1,369*1,404*1,447*1,486*1,504*1";
w["errorprop"]="118*2";
w["errorproperti"]="200*1,447*1,486*1";
w["errors."]="200*1,486*1";
w["es"]="102*1,402*1,411*1";
w["escap"]="257*2,279*1,518*3";
w["ese"]="42*1";
w["eshold"]="422*1";
w["especi"]="42*1";
w["essari"]="288*1";
w["essenc"]="169*1";
w["essenti"]="35*1,99*1,108*1";
w["et"]="109*1";
w["etc"]="15*1,26*2,126*3,138*3,236*7,249*1,265*3,293*1,303*1,313*1,410*2,424*1,487*1,503*1";
w["etc."]="26*2,102*2,135*3,138*2,241*1,265*1,293*1,302*1,313*1,338*1,487*1";
w["ete"]="402*1";
w["ethic"]="402*1";