Subject Error registered in Windows event Viewer

We have a server running Firebird 2.5.6 SuperServer.On a Windows 64 bits.

Every once in a while we get this in the Event Viewer:

ANS4005E Error processing '\\db07\c$\ProgramData\firebird\fb_lock_068acd2200001200a4000000': file not found


Eventid: 4099

Source: AdsmClientService



XML Version of the same.

<Event xmlns="">


                                            <Provider Name="AdsmClientService" />

                                            <EventID Qualifiers="49152">4099</EventID>




                                            <TimeCreated SystemTime="2017-02-21T03:52:43.000000000Z" />




                                            <Security UserID="S-1-5-18" />



                                            <Data>ANS4005E Error processing '\\db07\c$\ProgramData\firebird\fb_lock_068acd2200001200a4000000': file not found</Data>




Everything seems to run perfectly, and after some hours it goes away. Sometimes almost a day.

The FIREBIRD.LOG has no entrys.

What does this mean?

Should I be worried?