Default Listening Port 513 has already been occupied

Default Listening Port 513 has already been occupied

I have encountered this port error but I pretty much sure the port 513 is not in use. However I have tired to change it by running runSEC.sh which resulted:

./runSEC.sh: line 7: bin/SysEvtCol: No such file or directory

The file is there, but:

file bin/SysEvtCol 
bin/SysEvtCol: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.2.5, not stripped

so it is a 32 bit executable but only this one:
bin/*| grep LSB 
bin/SysEvtCol:             ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.2.5, not stripped
bin/packetCapture:         ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
bin/wrapper:               ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.0, not stripped

Yest it is possible to run 32bit apps in 64bit env but I have not installed any 32 bit libs.

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