What could be wrong in the code?

Question

Python

error in console:

return self._send_api_request('set', params=data)
  File "C:\Users\USER\AppData\Local\Programs\Python\Python39\lib\site-packages\vkcoin\vkcoin.py", line 28, in _send_api_request
    raise Exception(response['error']['message'])
Exception: TOO_MANY_REQUEST_FOR_THIS_METHOD

my code:

from colorama import init, Fore, Back, Style
import vk_api, json
from vk_api.longpoll import VkLongPoll, VkEventType
import vkcoin
import json
import datetime

init()

now = datetime.datetime.now()
timeA = now.hour

merchant = vkcoin.VKCoin(user_id=57xxxxx, key='Zn&w]u-lidxxxxxxxxxx')
rez = merchant.get_balance(578382301)

vk_session = vk_api.VkApi(token = "5fa6dxxxxxxxxxxxxxxxxxxxxxxxx")
vk = vk_session.get_api()
longpol = VkLongPoll(vk_session)

print(Style.BRIGHT + Fore.GREEN +"vk-бот запущен")
print("[YES]")

data = {}
m = 0
def construct(id,name,money):
    p = {}
    p["name"] = name
    p["money"] = money
    p["messegNumb"] = 0

    data[str(id)] = p

    return "normal"
    
def savelink():
    filee = open("config.json","w")
    data2="""{
    "sez": 1,
    "mon": "200.000",
    "bank": """ + str(rez['57xxxxx']) + """,
    "link": """ + link + """
}"""
    datass = filee.write(data2)
    filee.close()
def savebd():
    with open("value.txt", "w") as file:
        for  i in data:
            p = str(i) + " " +str(data[i]["name"]) +" " +str(data[i]["money"])+ " " +str(data[i]["messegNumb"])
            
            file.write(p + '\n')
rez = 0
def loadbd():
    file = open("value.txt","r") 
    datas= file.read()
    datas = datas.splitlines()
    file.close()
    data = {}
    for i in datas:
        i = i.split()
        if len(i)>3:
            data[str(i[0])] = {}
            data[str(i[0])]["name"] = i[1]
            data[str(i[0])]["money"] = i[2]
            data[str(i[0])]["messegNumb"] = i[3]
    return(data)

data = loadbd()
for event in longpol.listen():
     if event.type == VkEventType.MESSAGE_NEW:
            if event.to_me:
                
                rez = merchant.get_balance(5783xxxxx)
                
                id = event.user_id
                body = event.text
                
                n = 0
                for i in data:
                	if str(id) == i :
                		n = 1
                if n == 0:
                	construct(id , id , 0,)
                merchant.set_shop_name(name="max")
                link=merchant.get_payment_url(amount=200000000, payload=78xxx, free_amount=False)
                print("hjj")
                savelink()
                savebd()

help me please!