fspms service cannot stop with error „fsaus is not running“ in Policy Manager for Linux

Issue:

fspms service cannot stop with error "fsaus is not running" in Policy Manager for Linux.

F-Secure Policy Manager Server is malfunctioning:
jetty is running…
fsaus is not running
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There's error log in launcher-error.log.
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Could not stop server, ensure that valid IPC.KEY and IPC.PORT are specified
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How can I solve this error?

Resolution:

This error may happen when fspms is stopped as soon as after fspms is started.
Since there's process limitation in fspms, it's recommended to stop fspms 5 to 10 minutes after fspms is started.