Object reference not set to an instance of an object

[QuaxTheSnoopie 16]

It's nothing serious but since Beta7L I got the following error message closing P2A accompanied by a box "Program has stopped working":
It doesn't matter if I start P2A alone or together with P3D 4.5 HF3.
I changed to other "map views" without releaf

Program StartedPilot2ATC® (P2A) - version 2.7.0.0_x64_Beta7M  02/03/2024 09:12:02
Windows OS: Microsoft Windows 10 Pro
Version: 6.2.9200.0
Platform: Win32NT
Memory: 33411727360

Trying to create DB_Dyno.
DB_Dyno created successfully.
Init 15% done.
Trying to create DB_Base.
DB_Base created successfully.
Application frmP2AMain starting 02/03/2024 09:12:15
Loading Joystick Devices - 7 devices loaded.
Loading Form
Main form opened: Pilot2ATC® 2021 v. 2.7.0.0_x64_Beta7M      Navigraph - AIRAC cycle: 2307
Loading Joystick Devices - 7 devices loaded.
Loading Joystick Devices - 7 devices loaded.
Loading Joystick Devices - 7 devices loaded.
Loading Joystick Devices - 7 devices loaded.
Joystick Device number 0 successfully activated.
Loading Map Control
LoadMapControl: panel 1
Creating ucMap1
SQLiteVersion: 3.8.11.1 | 2015-07-29 20:00:57 cf538e2783e468bbc25e7cb2a9ee64d3e0e80b2f | INTEROP_CODEC INTEROP_EXTENSION_FUNCTIONS INTEROP_VIRTUAL_TABLE NET_40 PRELOAD_NATIVE_LIBRARY THROW_ON_DISPOSED TRACE TRACE_PRELOAD TRACE_SHARED TRACE_WARNING USE_PREPARE_V2 WINDOWS
ucMap1 Created
ucMap DockFill set.
Setting Map Mode
Done Loading Map Control
Loading FPL Control
FPL Control Loaded
ForcePilotRunway Changed to: True
Simulator Disconnected. 02/03/2024 09:13:43
Object reference not set to an instance of an object.
   at GMap.NET.Internals.FastReaderWriterLock.AcquireWriterLock()
   at GMap.NET.Internals.Core.Dispose(Boolean disposing)
   at GMap.NET.Internals.Core.Finalize()

Windows Event Viewer shows me this entries:

Application: Pilot2ATC_2021.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.NullReferenceException
   at GMap.NET.Internals.FastReaderWriterLock.AcquireWriterLock()
   at GMap.NET.Internals.Core.Dispose(Boolean)
   at GMap.NET.Internals.Core.Finalize()

and

Faulting application name: Pilot2ATC_2021.exe, version: 2.7.0.0, time stamp: 0x65b4eb50
Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000
Exception code: 0xc0000005
Fault offset: 0x00007ff82a51ff1e
Faulting process id: 0x451c
Faulting application start time: 0x01da5679aab13d78
Faulting application path: C:\Games\Pilot2ATC_2018_x64\Pilot2ATC_2021.exe
Faulting module path: unknown
Report Id: 494fb9f5-31b6-4f17-a77d-281db479a000
Faulting package full name: 
Faulting package-relative application ID: 

Maybe I have to change a setting to avoid this error - but as I said: it's not a serious problem, just for your information.

Edited February 3 by QuaxTheSnoopie