This was likely copied incorrectly, in most cases the compartment ocid is the same as the tenancy ocid unless the server is placed in a compartment. I have updated the code to use the tenantId, this will be included in the next release. The file can be edited at /usr/lib/pritunl/usr/lib/python3.9/site-packages/pritunl/utils/oracle.py then run sudo systemctl restart pritunl to patch an existing server.