UnicodeDecodeError: "ascii"

[RoberWare]

The first run I made with:

python VID_yolo.py --path_video video.mp4

I got this error:

Traceback (most recent call last):
File "VID_yolo.py", line 11, in
import Utils_Video
File "/home/roberto/Programación/TENSORFLOW/Tensorflow_Object_Tracking_Video-master/Utils_Video.py", line 5, in
import utils_image
ImportError: No module named utils_image

I changed this

import utils_image

To this

import Utils_Image

In Utils_Video.py

And now I get this error:

Traceback (most recent call last):
File "VID_yolo.py", line 11, in
import Utils_Video
File "/home/roberto/Programación/TENSORFLOW/Tensorflow_Object_Tracking_Video-master/Utils_Video.py", line 5, in
import Utils_Image
File "/home/roberto/Programación/TENSORFLOW/Tensorflow_Object_Tracking_Video-master/Utils_Image.py", line 10, in
import matplotlib.pyplot as plt
File "/home/roberto/.local/lib/python2.7/site-packages/matplotlib/pyplot.py", line 72, in
from matplotlib.backends import pylab_setup
File "/home/roberto/.local/lib/python2.7/site-packages/matplotlib/backends/init.py", line 14, in
line for line in traceback.format_stack()
File "/home/roberto/.local/lib/python2.7/site-packages/matplotlib/backends/init.py", line 16, in
if not line.startswith(' File "<frozen importlib._bootstrap'))
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 32: ordinal not in range(128)

What's wrong? Thanks in advance!!!