Hello guys what is demo limit error ?I have found a code for Load Cell in online but while compiling it shows Demo limit error

sbit LCD_RS at LATB4_bit;
sbit LCD_EN at LATB5_bit;
sbit LCD_D4 at LATB0_bit;
sbit LCD_D5 at LATB1_bit;
sbit LCD_D6 at LATB2_bit;
sbit LCD_D7 at LATB3_bit;
sbit LCD_RS_Direction at TRISB4_bit;
sbit LCD_EN_Direction at TRISB5_bit;
sbit LCD_D4_Direction at TRISB0_bit;
sbit LCD_D5_Direction at TRISB1_bit;
sbit LCD_D6_Direction at TRISB2_bit;
sbit LCD_D7_Direction at TRISB3_bit;
void main()
{
int adc_rd;
float adc_val;
float wt;
char finaltxt[8];
float quant=5.0/1024;
//char res[5];
PORTB =0xFF;
TRISB=0xFF;
ADCON1=0Xc0;
ADC_Init();
LCD_Init();
lcd_cmd(_LCD_CLEAR);
lcd_cmd(_LCD_CURSOR_OFF);
while(1)
{
adc_rd = ADC_Read(0);
adc_val=adc_rd*quant;
wt=(adc_val-0.361)/0.079;
sprintf(finaltxt,"%1.2f",wt);
lcd_cmd(_LCD_CLEAR);
Lcd_Out(1,1,"WEIGHT: ");
Lcd_Out(1,9,finaltxt);
Lcd_Out(1,14,"KGs");
Delay_ms(1000);
}
}