Scraper cannot run suddenly and show "driver is not defined" - python-3.x

Question

I am running a scraper that get the data from Nowgoal. It was running fine till this morning. I run it again without any changes in the program, it showed me an error "driver is not defined".
However, I have already defined as follows:
options = webdriver.ChromeOptions() #initialise webdriver options
driver = webdriver.Chrome(resource_path('./drivers/chromedriver.exe'),options=options)
I am not sure what exactly is the problem, the error directed to the last line of the program where I quit the driver as follow:
driver.quit()
It happened a few times, I closed all the IDLE and opened it again, it worked. But now, no matter what it got me the same error.
Below is the detail code and the Link_output file is here to get the main URLs.
#######Main script start here - open the file where the urls has been stored-make sure Link_output is in same folder as script running######
read_workbook = load_workbook(filename="Link_output.xlsx")
read_sheet = read_workbook.active
for row in range(2,read_sheet.max_row+1):
for column in "BDG": #Here you can add or reduce the columns
cell_name = "{}{}".format(column, row)
main_urls.append(read_sheet[cell_name].value)
#we have URL ready
print('Urls we are going to scrape : ' ,main_urls)
#filter out the dictionary based on bookmakers entered in config file- we will have the bookmakers available in my_dictionay_button
wanted_bookmaker_lst = bkmaker_param.split(',')
for maker in wanted_bookmaker_lst:
for k,v in main_dictionary_button.items():
if k.startswith(maker):my_dictionary_button[k]=v
#now loop through each URL
for file_key ,main_url in enumerate(main_urls):
#start the new workbook for each new URL
workbook = Workbook()
#Error flag clear - first time action flag also cleared
i=0
error_flag =0
file_key += 1
#Main url -print here-every third value is the link
if file_key % 3 == 0:
print(main_url)
# first we will enter into main_url - urls generally open with Crown tab - so we will click through each button of the bookmakers
for bookmaker ,odds_url_button in my_dictionary_button.items():
if i == 0 and error_flag == 0 :#first time action
#start the driver for the first time
driver = webdriver.Chrome(resource_path('./drivers/chromedriver.exe'),options=options)
#driver = webdriver.Chrome(executable_path = driver_path,options=options )
try:
driver.get(main_url) #Get the main url
except TimeoutException:
driver.get(main_url) #in case of timeout error - try again
time.sleep(5)
try:
driver.find_element_by_xpath(odds_url_button).click() #click on the first bookmaker button
driver.switch_to.window(driver.window_handles[0]) #in case any pop up is opening due to any reason - swtich to main window
except NoSuchElementException: #In case button is not found
print('Button not found')
lst_of_reattempt.append(driver.current_url) #Get the current url for which we were not able to find the button
saved_button_for_halftime = odds_url_button #save the button for later reattempt
driver.quit()
i+=1 #Firt time actions are over
error_flag == 1 #initialise the error count
continue
i+=1
elif error_flag == 1: #if previous one went into error
if odds_url_button == '//*[#id="htBtn"]/a': #In case the error happened while clicking on half time button
half_time = 1
revised_url = get_url_from_button(saved_button_for_halftime,main_url,half_time)# Get the revised url
userAgent = ua.random #change user agent everytime browser went into error
options.add_argument(f'user-agent={userAgent}')
driver = webdriver.Chrome(resource_path('./drivers/chromedriver.exe'),options=options) #trigger driver
#driver = webdriver.Chrome(executable_path = driver_path,options=options )
try:
driver.get(revised_url) #Revised URL open
time.sleep(5)
except TimeoutException:
driver.get(revised_url) #In case of timeout- reattempt
time.sleep(5)
error_flag = 0 #disable error flag - so we can proceed as usual
else:
revised_url = get_url_from_button(odds_url_button,main_url)
userAgent = ua.random
options.add_argument(f'user-agent={userAgent}')
driver = webdriver.Chrome(resource_path('./drivers/chromedriver.exe'),options=options)
#driver = webdriver.Chrome(executable_path = driver_path,options=options )
try:
driver.get(revised_url)
except TimeoutException:
driver.get(revised_url)
error_flag = 0
else: #In case of no error
driver.find_element_by_xpath(odds_url_button).click()#Click on next button
driver.switch_to.window(driver.window_handles[0]) #in case any pop up is opening due to any reason - swtich to main window
i+=1
time.sleep(random.randint(5,7)) #sleep for random amount of time - to make the script robust
htmlSource = driver.page_source #Get the html code
soup = bs4.BeautifulSoup(htmlSource,'html.parser') #pass the page
#get the fixed data which is common and do not change for one book maker
title, home_team , away_team , place, weather ,tournament,m_date,m_time,data_first,data_second,data_third,final_score = get_fixed_data(soup)
#home team ranking
home_team_ranking = main_urls[file_key-3]
away_team_ranking = main_urls[file_key-2]
print('Title data :',title)
if title != 'No Data':#check if the data found or not
#create the folder path
print(m_date)
folder_month ,folder_day ,folder_year = m_date.split('-') #/
folder_hour ,folder_minute = m_time.split(':')
#fle_name = folder_day +folder_month + folder_year
#folder_name = folder_day +'_'+folder_month+'_' + folder_year
#convert the time to gmt
folder_time_string = folder_year +'-'+folder_month +'-'+folder_day +' '+ folder_hour+':'+folder_minute+':00'
#folder name change
folder_name =time.strftime("%d-%m-%Y", time.gmtime(time.mktime(time.strptime(folder_time_string, "%Y-%d-%m %H:%M:%S"))))
print(bookmaker)
#Output_file_format
try:
print('Creating directory')
os.mkdir(os.path.join(os.getcwd()+'\\'+folder_name))
except FileExistsError:
print('Directory already exist')
inter_file_name = 'Odds_nowgoal_'+str(title.replace('v/s','vs'))+'_'+folder_name+'.xlsx'
ola = os.path.join('\\'+folder_name,inter_file_name)
output_file_name = os.path.join(os.getcwd()+ola)
#sheet_title_first_table
sheet_title = '1X2 Odds_'+bookmaker
#add data to excel
excel_add_table(sheet_title,data_first,title,home_team , away_team , place, weather ,tournament,m_date,m_time,bookmaker,home_team_ranking,away_team_ranking,final_score)
#sheet_title_second_table
sheet_title = 'Handicap Odds_'+bookmaker
#add data to excel
excel_add_table(sheet_title,data_second,title,home_team , away_team , place, weather ,tournament,m_date,m_time,bookmaker,home_team_ranking,away_team_ranking,final_score)
#sheet_title_third_table
sheet_title = 'Over_Under Odds_'+bookmaker
#add data to excel
excel_add_table(sheet_title,data_third,title,home_team , away_team , place, weather ,tournament,m_date,m_time,bookmaker,home_team_ranking,away_team_ranking,final_score)
else :
lst_of_reattempt.append(home_team_ranking)
lst_of_reattempt.append(away_team_ranking)
lst_of_reattempt.append(driver.current_url) #add the url into list of reattempt
saved_button_for_halftime = odds_url_button #save the button when error happens - so we can convert it into URL and later reattempt
error_flag = 1
driver.quit() #Quit the driver in case of any error
driver.quit()