Read/Write specific register value on I2C

Hi,

I am using STM32L031K6 MCU and SW4STM32 IDE for development. I want to read/write specific register value of i2c slave device from MCU(i2c master)

Below is a code I am using.

#include "main.h"
 
#define I2C_ADDRESS 0x3c
#define MASTER_BOARD
#define I2C_TIMING 0x00B1112E 
 
I2C_HandleTypeDef I2cHandle;
 
uint8_t aTxBuffer[] = "ff";
uint8_t aRxBuffer[4];
 
void SystemClock_Config(void);
static uint16_t Buffercmp(uint8_t* pBuffer1, uint8_t* pBuffer2, uint16_t BufferLength);
static void Error_Handler(void);
 
int main(void)
{
 GPIO_InitTypeDef GPIO_InitStruct;
 HAL_Init();
 SystemClock_Config();
 BSP_LED_Init(LED3);
 
 I2cHandle.Instance = I2Cx;
 I2cHandle.Init.Timing = I2C_TIMING;
 I2cHandle.Init.OwnAddress1 = I2C_ADDRESS;
 I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
 I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
 I2cHandle.Init.OwnAddress2 = 0xFF;
 I2cHandle.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
 I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
 I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; 
 
 if(HAL_I2C_Init(&I2cHandle) == HAL_ERROR)
 {
 Error_Handler();
 }
 
 
 HAL_I2CEx_ConfigAnalogFilter(&I2cHandle,I2C_ANALOGFILTER_ENABLE);
 do
 {
 if(HAL_I2C_Mem_Read(&I2cHandle, (uint16_t)I2C_ADDRESS, (uint16_t)0x00, I2C_MEMADD_SIZE_8BIT, (uint8_t *)aRxBuffer, 1, 10) != HAL_OK)
 {
 Error_Handler();
 }
 while (HAL_I2C_GetState(&I2cHandle) != HAL_I2C_STATE_READY)
 {
 }
 }
 while(HAL_I2C_GetError(&I2cHandle) == HAL_I2C_ERROR_AF);
 
 HAL_Delay(1000);
 while (1)
 {
 }
}
 
void SystemClock_Config(void)
{
 RCC_ClkInitTypeDef RCC_ClkInitStruct ={0};
 RCC_OscInitTypeDef RCC_OscInitStruct = {0};
 
 __HAL_RCC_PWR_CLK_ENABLE();
 
 __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
 
 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
 RCC_OscInitStruct.HSIState = RCC_HSI_ON;
 RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
 RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL4;
 RCC_OscInitStruct.PLL.PLLDIV = RCC_PLL_DIV2;
 if (HAL_RCC_OscConfig(&RCC_OscInitStruct)!= HAL_OK)
 {
 /* Initialization Error */
 while(1); 
 }
 
 RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | 
 RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | 
 RCC_CLOCKTYPE_PCLK2);
 RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
 RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
 RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; 
 RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; 
 if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1)!= HAL_OK)
 {
 /* Initialization Error */
 while(1); 
 }
}
 
void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *I2cHandle)
{
 BSP_LED_Toggle(LED3);
}
 
void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *I2cHandle)
{
 BSP_LED_Toggle(LED3);
}
 
void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *I2cHandle)
{
 if (HAL_I2C_GetError(I2cHandle) != HAL_I2C_ERROR_AF)
 {
 Error_Handler();
 }
}
 
static void Error_Handler(void)
{
 while(1)
 {
 BSP_LED_Toggle(LED3);
 HAL_Delay(1000);
 }
}

HAL_I2C_Mem_Read is not returning HAL_OK and starts blinking LED3 from Error_Handler().

Please advice, thank you!