Plugin Failed to read. Invalid Json Token.

[teomchen]

First I can't build the plugin for 4.26 on two of my Razer Blade laptop.
Both shows the error window with title:
Failed to load Plugin
and messages:
Failed to read file. Invalid Json Token. Line: 1 Ch: 1
(C:/Users/Admin/Documents/Unreal Projects/Leap_Test/Plugins/LeapUnreal-3.7.0/._LeapMotion.uplugin)

after several failures, I try to build the plugin on my desktop, everything went fine.
then I duplicate the built plugin folder to the same project on both of my Razer laptop.
I got the same error message again :
Failed to read file. Invalid Json Token. Line: 1 Ch: 1

I'm able to open the project now since the plugin was built. and inside unreal the plugin was there on the plugin settings to enable. but still failed to connect to my leap motion due to the error.
I really need to run this on my new laptop for an important project now, please, if someone can help me with this.

following is the error messages from the log:

LogPluginManager: Error: Failed to read file. Invalid Json Token. Line: 1 Ch: 1 (C:/Users/Admin/Documents/Unreal Projects/Leap_Test/Plugins/LeapUnreal-3.7.0/._LeapMotion.uplugin)
[2021.05.05-11.22.52:947][ 0]LogWindows: Failed to load 'OVRPlugin.dll' (GetLastError=126)
[2021.05.05-11.22.52:957][ 0]LogWindows: Failed to load '../../../Engine/Binaries/ThirdParty/LeapMotion/Win64/LeapC.dll' (GetLastError=126)