trouble with list array

[Milfredo]

I have changed the code and I know I am creating a list. But when I go to print out list I get an error. Don't understand why. I know what it says at end of error, but doesn't make sense to me.

def load_track_to_Handi():
	my_tracklabel= Label(root, text ="                                                                               ", fg= "#F50808", font = ("sans_serif" , 16)).place(x=380, y=430)
	read_csvfile_into_array()
	
		
	global track_abrev
	global race_number
	global xx
	
	#if fileFound ==True:

		
		 
	sortedArr = []
	x=[]
	
	hcount = 0
	
	with open( 'C://guis/f_racefiles/'+ track_abrev + '.csv' , 'r') as race_file:

		csv_reader = csv.reader(race_file) 
		#for line in race_file: 
			#print(line)
		df = pd.read_csv(race_file, header =None)
		for i in df:
			#if int(np.array(df.iloc[hcount, 1:2 ])) < int(race_number):
			xx = np.array(df.iloc[hcount,18:19 ])
			#xx = (hcount,int(x))

			sortedArr.append(xx)
			hcount+=1
				                          				       		
		for i in range(0,len(sortedArr)):   	
			print(sortedArr[i])		

Error:
Milford@LAPTOP-3NUEM60C MINGW64 /c/guis
$ python testloop.py
Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Users\Milford\AppData\Local\Programs\Python\Python38-32\lib\tkinter\__init__.py", line 1883, in __call__
return self.func(*args)
File "testloop.py", line 135, in select_track
load_track_to_Handi()
File "testloop.py", line 94, in load_track_to_Handi
xx = np.array(df.iloc[hcount,18:19 ])
File "C:\Users\Milford\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pandas\core\indexing.py", line 873, in __getitem__
return self._getitem_tuple(key)
File "C:\Users\Milford\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pandas\core\indexing.py", line 1443, in _getitem_tuple
self._has_valid_tuple(tup)
File "C:\Users\Milford\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pandas\core\indexing.py", line 702, in _has_valid_tuple
self._validate_key(k, i)
File "C:\Users\Milford\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pandas\core\indexing.py", line 1352, in _validate_key
self._validate_integer(key, axis)
File "C:\Users\Milford\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pandas\core\indexing.py", line 1437, in _validate_integer
raise IndexError("single positional indexer is out-of-bounds")
IndexError: single positional indexer is out-of-bounds

I don't understand why I'd have an index error.