Hello,
Your log file shows that the port TCP/4445 is already used, so FOP2 cannot start. That port might be used either by FOP2 itself or by the old FOP(1). In the first case, there is actually NO problem, you cannot start FOP2 twice. If the later, then you must disable/stop FOP(1). To check who is binding to port tcp 4445 run this command:
netstat -lnp | grep 444
What is the output? Do you see "perl" as the process name for the matched line? If so, that is the old FOP(1) and you must stop it and disable it as described in the documentation.