what is the problem here? code is in c++

what does this error mean?

whings lines Lthlibetind llejline 3 string id; int age; double besttime; (riminum time took to win procel 3; void backupData(string filename, string filename backup ) . ofstream outFile(filename backup.c_str()) ifstream infile(filename.c str()); string line; if(outfile.is open() 8& infile.is open()) \{ dof getline(infile, line); /I read fros original ftle outFiless 1 ine endl; // write to bockup flle Resources d] Compile Log Debug [C. Find Results Message [Error] expected initializer before "' token