What does your jdbc url look like to specify how to connect to the database?
It looks like you are trying to use the thick jdbc driver (using native libraries), instead of the thin jdbc driver. The error indicates it's not allowed to load the native libary.
Where are you deploying? Mendix cloud or somewhere else?
Currently our connection string is as follows: 'jdbc:oracle:oci8:username/password@server:port:database'
As of now we are just working on this locally.