I am afraid I have to inform you that your application to the Rheinwehr got declined.
RMHC (Rheinland Militay High Command) takes the line that you are not ready to serve the Kanzler and the Vaterland within the primary fleet yet.
If you train your skills and work hard in the future you may be able to join the [RM] in the future.
Take yourself the time of 30 days to achieve the needed experience and abilities.
After those 30 days, feel free to reapply to the Rheinland Military.