Importing failed almost totally

[pier59]

Hello,
I have just started installing Calibre and I added 1980 epub books.
I meant to sync them with my Kobo Glo (bought 15 years ago). I wanted to put them on a new, empty SD card, and only 49 books got transferred.Here are the messages that I get:

calibre, version 8.8.0
AVERTISSEMENT : Pas de format adapté: Impossible d’envoyer les livres suivants vers le périphérique, car aucun format approprié n’a été trouvé. Convertissez d'abord le(s) livre(s) vers un format pris en charge par votre périphérique.

Des vents contraires
Les Lisières
and many other books not transferred

And here is the translation : calibre, version 8.8.0
WARNING: No suitable format: The following books could not be sent to the device because no suitable format was found. First, convert the book(s) to a format supported by your device.


And another pop up :

calibre, version 8.8.0
ERREUR : Erreur: Erreur pendant la communication avec le périphérique

Impossible de kepubifier le livre Jameson Jenna-How to Make Love Like a Porn Star (Jameson Jenna-How to Make Love Like a Porn Star - Inconnu(e)_30.epub) qui a échoué avec l'erreur : 'NoneType' object has no attribute 'exception'

Traceback (most recent call last):
  File "calibre/ebooks/oeb/polish/container.py", line 1193, in __init__
  File "calibre/utils/zipfile.py", line 813, in __init__
  File "calibre/utils/zipfile.py", line 848, in _GetContents
  File "calibre/utils/zipfile.py", line 863, in _RealGetContents
calibre.utils.zipfile.BadZipfile: File is not a zip file

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "calibre/devices/kobo/driver.py", line 2368, in _kepubify
  File "calibre/ebooks/oeb/polish/kepubify.py", line 545, in kepubify_path
  File "calibre/ebooks/oeb/polish/container.py", line 1637, in get_container
  File "calibre/ebooks/oeb/polish/container.py", line 1196, in __init__
AttributeError: 'NoneType' object has no attribute 'exception'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "calibre/gui2/device.py", line 111, in run
  File "calibre/gui2/device.py", line 662, in _upload_books
  File "calibre/devices/kobo/driver.py", line 2310, in upload_books
  File "calibre/devices/kobo/driver.py", line 2372, in _kepubify
ValueError: Impossible de kepubifier le livre Jameson Jenna-How to Make Love Like a Porn Star (Jameson Jenna-How to Make Love Like a Porn Star - Inconnu(e)_30.epub) qui a échoué avec l'erreur : 'NoneType' object has no attribute 'exception'

Translated as:

calibre, version 8.8.0
ERROR: Error: Error communicating with device

Unable to kepub the book Jameson Jenna - How to Make Love Like a Porn Star (Jameson Jenna - How to Make Love Like a Porn Star - Unknown_30.epub) which failed with error: 'NoneType' object has no attribute 'exception'

Traceback (most recent call last):

  File "calibre/ebooks/oeb/polish/container.py", line 1193, in __init__
  File "calibre/utils/zipfile.py", line 813, in __init__
  File "calibre/utils/zipfile.py", line 848, in _GetContents
  File "calibre/utils/zipfile.py", line 863, in _RealGetContents
calibre.utils.zipfile.BadZipfile: File is not a zip file

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "calibre/devices/kobo/driver.py", line 2368, in _kepubify
  File "calibre/ebooks/oeb/polish/kepubify.py", line 545, in kepubify_path
  File "calibre/ebooks/oeb/polish/container.py", line 1637, in get_container
  File "calibre/ebooks/oeb/polish/container.py", line 1196, in __init__
AttributeError: 'NoneType' object has no attribute 'exception'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "calibre/gui2/device.py", line 111, in run
  File "calibre/gui2/device.py", line 662, in _upload_books
  File "calibre/devices/kobo/driver.py", line 2310, in upload_books
  File "calibre/devices/kobo/driver.py", line 2372, in _kepubify
ValueError: Impossible de kepubifier le livre Jameson Jenna-How to Make Love Like a Porn Star (Jameson Jenna-How to Make Love Like a Porn Star - Inconnu(e)_30.epub) qui a échoué avec l'erreur : 'NoneType' object has no attribute 'exception'

Merci de votre aide.