How to solve: System.Windows.Forms.AxHost.InvalidActiveXStateException

Hello
In the past, I developped a MapWinGIS program using C# under 32 bit. I use “axMap…”. It works perfectly.
Now I am using 64 bit (Visual Studio 2022 & MapWinGIS 5.3.0.0). I succeed to create the rebuild solution without generating error.
But when I run my program, now I get this error and I absolutely do not know how to solve it:

System.Windows.Forms.AxHost.InvalidActiveXStateException: ‘Une exception de type ‘System.Windows.Forms.AxHost+InvalidActiveXStateException’ a été levée.’

The line code n°133 where the error occurs is : axMap1.LockWindow(tkLockMode.lmLock);
It is within a procedure to “AddALayer”

Here are the details:
System.Windows.Forms.AxHost.InvalidActiveXStateException
HResult=0x80131500
Message=Une exception de type ‘System.Windows.Forms.AxHost+InvalidActiveXStateException’ a été levée.
Source=AxInterop.MapWinGIS
StackTrace:
at AxMapWinGIS.AxMap.LockWindow(tkLockMode lockMode)
at MyLib_SIG.Layer_AddOneFromPath(AxMap axMap1, ListView listLayer, String myFilePath, Boolean PathRel, Boolean Exit_OK, Boolean Exit_Msg) in C:\Users\cdela\Inexis\001 Logiciel\05 CSharp\04 MyLibrary\MyLibrary\MyLib_SIG.cs:line 133

Thank you in advance for your help.
Best regards,