Error Converting Office Documents- "errors while processing the file"

See the jpg attachment of the error.

jodconverter-core-3.0-beta-4 is installed

jod_path and office_path are defined (see attachments)

There is nothing in the logs relating to this. (attached)

A also attach a listing of permissions on the installed files and also the systemd service file.

Specific permissions on jodconverter:

$ ls /opt/jodconverter-core-3.0-beta-4/lib -l
total 2064
rw-rr- 1 openmeeting openmeeting 36174 May 7 2011 commons-cli-1.1.jar
rw-rr- 1 openmeeting openmeeting 109043 May 7 2011 commons-io-1.4.jar
-rwxrwxr-x 1 openmeeting openmeeting 69810 Aug 21 2011 jodconverter-core-3.0-beta-4.jar
rw-rr- 1 openmeeting openmeeting 45944 May 7 2011 json-20090211.jar
rw-rw-r- 1 openmeeting openmeeting 55616 Jun 19 2011 juh-3.2.1.jar
rw-rw-r- 1 openmeeting openmeeting 108323 Jun 19 2011 jurt-3.2.1.jar
rw-rw-r- 1 openmeeting openmeeting 256521 Jun 19 2011 ridl-3.2.1.jar
rw-rw-r- 1 openmeeting openmeeting 1415815 Jun 19 2011 unoil-3.2.1.jar