Help/Support Help to hook Unity string params on iOS

[hungvi0610 0 iPhone 13 Pro Max 15.1]

Hi guys, I have this Unity code

[Address(RVA = "0x2DFB948", Offset = "0x2DFB948", VA = "0x2DFB948")]
public void SendAdjustEvent(string adjustEventToken)
{
}

and another function to work as a pointer

[Address(RVA = "0x2E11424", Offset = "0x2E11424", VA = "0x2E11424")]
private void InitScore()
{
}

Then I tried to pass some string as adjustEventToken params like this in Ted2 menu mod:

#import "Macros.h"
#include <string>
/***********************************************************
  INSIDE THE FUNCTION BELOW YOU'LL HAVE TO ADD YOUR SWITCHES!
***********************************************************/
void (*SendAdjustEvent)(void *self, const char *event);
void new_SendAdjustEvent(void *self, const char *event){

  SendAdjustEvent(self, event);
}

void (*InitScore)(void *self);
void new_InitScore(void *self){
  InitScore(self);
  std::string gay = "laaa32";
  const char* param = gay.c_str();
  SendAdjustEvent(self, param);

}

void setup() {

HOOK(0x2DFB948, new_SendAdjustEvent, SendAdjustEvent);
HOOK(0x2E11424, new_InitScore, InitScore);
  // Empty switch - usefull with hooking
  [switches addSwitch:NSSENCRYPT("name")
    description:NSSENCRYPT("des")
  ];


}

But it keeping crash the app when InitScore is called. Can you show me what I was wrong and how to fix it?

[Saitama 32.3k iPhone 6s Plus 15.7.9]

u need Mono String