Hello,
Be sure to change FOP1 port to something else than 4445 by editing /var/www/html/panel/op_server.cfg, then restart fop2 and verify that fop2 is working:
pgrep fop2_server
and verify that fop2 is using port 4445
netstat -lnp | grep 444
(it should display port 4445 being used by fop2_serve)
Once you verify that, try to login again.
Best regards,
