Remove proxyError, use errors pkg.
Remove proxyError, use errors pkg.

sunsan05/cow,Mattosx/cow,antmanler/MEOW,nickyfoto/cow,pjq/cow,blog2i2j/cow,boneyao/cow,Mattosx/cow,timesking/cow,pmphxs/cow,sinuos/cow,sunclx/cow,ljyloo/cow,styxyang/cow,ymero/cow,vcinly/cow,tnndwc/cow,fflamingogo/cow,fighterleslie/cow,blog2i2j/cow,hyqhyq3/cow,sunclx/cow,WangYue7477/cow,afdnlw/cow,pjq/cow,chobitly/cow,garylgh/cow,Zocalos/cow,afdnlw/cow,heimonsy/cow,imWildCat/cow,lhslll/cow,sunsan05/cow,hbprotoss/cow,nickyfoto/cow,SwordYork/cow,heimonsy/cow,itplanes/MEOW,qq205633/test,r3jack/cow,YoungGit/cow,pmphxs/cow,boneyao/cow,YoungGit/cow,wangkechun/cow,SwordYork/cow,wmydz1/cow,hbprotoss/cow,tnndwc/cow,sinuos/cow,pjq/cow,remxcode/cow,xdsnet/cow,squallyan/cow,remxcode/cow,janstk/cow,imWildCat/cow,hbprotoss/cow,MummyDing/cow,vcinly/cow,venuskira/cow,ghmajx/cow,MummyDing/cow,icetoggle/cow,lioonline/cow,TangTaigang/cow,icetoggle/cow,menghan/cow,r3jack/cow,antmanler/MEOW,garylgh/cow,Mattosx/cow,icetoggle/cow,venuskira/cow,juju2013/clever-cow,gccpacman/cow,boneyao/cow,itplanes/MEOW,beermix/cow,yu5611789/cow,hyqhyq3/cow,pmphxs/cow,thanatoskira/cow,cyfdecyf/cow,squallyan/cow,remxcode/cow,chobitly/cow,jn7163/cow,sunclx/cow,ymero/cow,imWildCat/cow,TangTaigang/cow,mbbill/cow,blog2i2j/cow,dxq-git/cow,cyfdecyf/cow,ghmajx/cow,demon386/cow,janstk/cow,sinuos/cow,menghan/cow,thanatoskira/cow,dxq-git/cow,bitwing/cow,squallyan/cow,timesking/cow,wangkechun/cow,YoungGit/cow,cyfdecyf/cow,fflamingogo/cow,soxfmr/cow,xdsnet/cow,ljyloo/cow,qq205633/test,mbbill/cow,ghmajx/cow,chobitly/cow,lhslll/cow,lhslll/cow,dochang/cow,dxq-git/cow,libichong/cow,fighterleslie/cow,gccpacman/cow,wongzigii/cow,thanatoskira/cow,wangjun/cow,lioonline/cow,wangkechun/cow,xdsnet/cow,jn7163/cow,gccpacman/cow,jn7163/cow,WangYue7477/cow,soxfmr/cow,wmydz1/cow,fflamingogo/cow,soxfmr/cow,lioonline/cow,wongzigii/cow,demon386/cow,libichong/cow,yu5611789/cow,fighterleslie/cow,Zocalos/cow,afdnlw/cow,MummyDing/cow,Zocalos/cow,wmydz1/cow,wangjun/cow,garylgh/cow,wongzigii/cow,tnndwc/cow,ymero/cow,beermix/cow,wangjun/cow,vcinly/cow,beermix/cow,venuskira/cow,SwordYork/cow,bitwing/cow,sunsan05/cow,r3jack/cow,dochang/cow,nickyfoto/cow,itplanes/MEOW,TangTaigang/cow,hyqhyq3/cow,janstk/cow,menghan/cow,bitwing/cow,styxyang/cow,styxyang/cow,dochang/cow,mbbill/cow,antmanler/MEOW,qq205633/test,WangYue7477/cow,libichong/cow,yu5611789/cow,ljyloo/cow,demon386/cow,heimonsy/cow,timesking/cow