1.
PHP Code:
my_ip self getIP(); 
2. Remove this and all libcod functions (made using "closer") from your .gsc scripts
PHP Code:
getIP(client)
{
    return 
closer(430/* ... */);

ALL LIBCOD FUNCTIONS WORK WITHOUT "CLOSER"!
Use them as normal (standard) functions like: isPlayer, getEntityNumber(), setClientCvar etc.

This has already been explained many times on the forum.
Use the latest version of libcod.