Flask 有时会正常工作，有时会导致“builtins.IndexError”错误？

Question

如果我运行这段代码，它会被正确分页，没有任何错误builtins.IndexError IndexError: single positional indexer out of bounds “错误，我完全理解 intenettene 解析，你有帮助吗？当我看相关文章时，我没有了解其中一些的解决方案，但有些不明白，因为他们不是土耳其语，你能帮我吗？from flask import Flask,render_template,flash,redirect,url_for,session,logging,requestfrom flask_mysqldb import MySQLfrom wtforms import Form,StringField,TextAreaField,PasswordField,validatorsfrom passlib.hash import sha256_cryptfrom functools import wrapsimport pandas as pdimport randomimport timeimport sysapp = Flask(__name__)app.secret_key= "ybblog"app.config["MYSQL_HOST"] = "localhost"app.config["MYSQL_USER"] = "root"app.config["MYSQL_PASSWORD"] = ""app.config["MYSQL_DB"] = "ybblog"app.config["MYSQL_CURSORCLASS"] = "DictCursor"mysql = MySQL(app)@app.route("/")def index():       return render_template("site.html")@app.route("/maps")def about():    return render_template("maps.html")#Atama [e-mail]("/sonuc",methods=["GET","POST"])def sonuc():    cursor = mysql.connection.cursor()    sorgu = "Select * From site"    result = cursor.execute(sorgu)        if result >0:        articles = cursor.fetchall()        cursor.execute("DELETE FROM site")        mysql.connection.commit()        cursor.close()        return render_template("sonuc.html",articles= articles)    else:        cursor.execute("DELETE FROM site")        mysql.connection.commit()        cursor.close()        return render_template("site.html")    cursor.execute("DELETE FROM site")    mysql.connection.commit()    cursor.close()