On the document it says that only MySQL is supported and on the project's page MySQL, PostgreSQL and DB2. As i think nobody is developing this plugin anymore, i doubt it will support any other database.
Not sure how did you manage to pull 1.0.3 if it has 1.1.0 for download here https://nexus.reucon.com/content/repositories/opensource-snapshots/com/reucon/op enfire/plugins/user-status/1.1.0-SNAPSHOT/
attaching the latest version