Bad format from MAC Address

Hello ITs,

We are getting SNMP traps from differents WLC 2504 (Cisco Wifi Controller) to our Kiwi Syslog Server (version 9.5.1.59) deployed on Windows Server 2012 64bits. The following problem it was discovered when we saw all MAC-addresses appears in bad format (see file attached below). We need to change the file format from cldcClientIPAddress.0 to Hex String. How can I change this field from "Messange Text"? I captured the SNMP trap and appears in well format.

Thanks you and best regards.