Updating Paperless to v2.13.5 doesn't work

[Spezialtrick]

I have just tried to update Paperless to v2.13.5 using the script. Unfortunately I get this error message:

cat: /opt/Paperless-ngx_version.txt: No such file or directory ✓ Ghostscript updated to 10.04.0 ✓ Stopped all Paperless-ngx Services \ Updating to v2.13.5 [ERROR] in line 97: exit code 0: while executing command /usr/bin/python3 manage.py migrate &> /dev/null

How can I fix this?

[MickLesk]

Use search function and delete external Management Python packages.