Проблемы подключения к БД у Pythona

Есть код

import telebot
from random import randint
import pymysql
from time import sleep
bot = telebot.TeleBot('APIKEY')
pool = []

def get_random_message(list):
    sleep(randint(2, 5))
    return list[randint(0, len(list) - 1)]

def remove_symbols(msg):
    sym = '%\\;\''
    res = msg
    for i in msg:
        if i in sym:
            res = res.replace(i, '')
    return res

def zhri_ego_eblo_tupoe(msg, chatid):
    insert = 'INSERT INTO data SET message=\'' + remove_symbols(msg) + '\', keywords=\''
    select = 'SELECT message FROM data WHERE '
    for i in msg.split(' '):
        if len(remove_symbols(i)) > 3:
            i_keys = remove_symbols(i).split(' ')
            if insert != 'INSERT INTO data SET message=\'' + remove_symbols(msg) + '\', keywords=\'':
                insert += ','
            if select != 'SELECT message FROM data WHERE ':
                select += ' OR '
            for k in i_keys:
                insert += k.lower()
                select += 'keywords LIKE \'%' + k.lower() + '%\''
    insert += '\''
    print(insert)
    print(select)
    print('----------------------------------------------')
    conn = pymysql.connect(host='127.0.0.1', port=3306, user='root',
                           passwd='', db='rer', use_unicode=True, charset="utf8")
    cur = conn.cursor()
    try:
        cur.execute(select)
        if cur.rowcount:
            answers = []
            for row in cur:
                answers.append(row[0])
            print(answers)
            try:
                bot.send_message(chatid, get_random_message(answers))
            except:
                pass
        try:
            cur.execute(insert)
            conn.commit()
        except Exception as e:
            print('***********************************')
            print(e)
            print('***********************************')
    except Exception as e:
        print('***********************************')
        print(e)
        print('***********************************')
    finally:
        conn.close()
        cur.close()


@bot.message_handler(content_types=["text"])
def handle_message(message):
    '''
        bot.send_message(message.chat.id, get_random_message(pool))
    '''
    print('******')
    print('CHAT_ID: ' + str(message.chat.id))
    print('******')
    if '@' in message.text or len(message.text) > 300 or 'чилен' in message.text.lower():
        pass
    else:
        rnd = randint(0, 999)
        if rnd % 2 == 0:
            try:
                zhri_ego_eblo_tupoe(message.text, message.chat.id)
            except Exception as e:
                print(e)
        while True:
                try:
                    bot.polling(none_stop=True)
                except Exception as e:
                    print('***********************************')
                    print(e)
                    print('***********************************')
                    sleep(15)

При использование кода с openserver появляется ошибка (ошибка указана ниже)

(1064, "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1")