Oracle Database 11g Enterprise Edition Release 11.2.0.3.0
$ tkprof db01_2962.trc oralog.prf explain=scott/hr sys=no sort=prsela,exeela,fchela
$ cat oralog.prf

I want to investigate more about the ORA-Errors which I received in alertSID.log file. Thus, I referred Trace files and I used TKPROF utility but I only see this much of information in the output file. If there is no information why 2254 lines selected in a trace. What files should I look for to troubleshoot and gather more information about the issue?
Thank you in advance.