May 27 00:22:03 local /usr/local/sbin/openser[11975]: ERROR: udp_init: bind(5, 0x81303fc, 16) on 70.189.13.96: Cannot assign requested address
As you can see on the last line of syslog: There is a problem with the IP-address assigned in your openser.cfg:
listen=70.189.13.96 # put your server IP address here
Obviously this address is not available at start.
regards Franz