[GameOvr]

I have this error

Код:

C:\Program Files\Sublime Text 3\pawno\include\YSI\..\YSI_Storage\..\YSI_Core\y_utils.inc(430) : warning 201: redefinition of constant/macro (symbol "isnull(%1)")

I tried all the fixes in the forum but still gives this error...
redefinition is in zcmd

zcmd code:

Код:

#if !defined isnull
	#define isnull(%1) \
				((!(%1[0])) || (((%1[0]) == '\1') && (!(%1[1]))))
#endif

y_utils code:

Код:

P:D(bool:isnull(str[]));
#define isnull(%1) \
	((%1[0] == 0) || (%1[0] == 1 && %1[1] == 0))

help me plz I'm not a good scripter at all