Menu Hack Keeps DCing in a while in game?

bool Memoria( void * pDest, char * szPatch, size_t sSize )//NOP Function
{ 
    DWORD dwOrgProtect = NULL; 
	if ( !VirtualProtect ( pDest, sSize, PAGE_EXECUTE_READWRITE, &dwOrgProtect ))
		return FALSE;

    memcpy( pDest, szPatch, sSize ); 
    VirtualProtect( pDest, sSize, dwOrgProtect, NULL ); 
    return TRUE; 
}