"Object reference not set to an instance of an object" error when open a map for edit

Whenever I try to open an existing map for edit, I am getting an error as ​"Object reference not set to an instance of an object".

I used console to log error. It shows console logs as follows:

 

Fail: UpdateSolutionOnExit

Success: SolutionService stopMonitor

Info: SolutionService notifyAll

 

Can someone help me how to open a map for edit? The map is not locked for edit.

(1) Answer

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