Impossible to import google-ads python library

Hello,
I have set up a docker container with Dockerfile configured as it follows:

# Get a Pyhton image

FROM python:3.9-buster

# Set some meta information

LABEL description="Remote Container for Space with Python"

LABEL version="1.0"

# Copy only the requirements.txt (used for pip install)

COPY requirements.txt ./

# Install all requirements

RUN pip install --upgrade pip && pip install --no-cache-dir -r requirements.txt

# Set the Pythonpath and working directory

ENV PYTHONPATH "/"

WORKDIR .

Then I have my requirements.txt file containing all the dependencies:

# SPICE
spiceypy

# Interactive Shell
ipython
ipywidgets
tqdm

# Jupyterlab
jupyterlab

# Numerics and Science
numpy
pandas
scipy

# Plotting
matplotlib
imageio

# Rendering, GUI
PyQt5
visvis

# Machine Learning
scikit-learn
tensorflow

# Google ads
google-ads

Once the container is created I import all the librairies without any issue, except google-ads for which I get this error message:

Error loading preloads:

* Could not find renderer

Can anyone provide assistance on this issue? It would be much appreciated.
Many thanks
Kiril