You had an error in the section that calls Ultimate Traffic, it's like this:
<Launch.Addon>
<Disabled>False</Disabled>
<ManualLoad>False</ManualLoad>
<Name>UT2</Nam
C:\Program Files (x86)\Lockheed Martin\Prepar3D v3\Flight One Software\Ultimate Traffic 2/UT2Services.exe</path>
<NewConsole>True</NewConsole>
</Launch.Addon>
But it should be like this:
<Launch.Addon>
<Disabled>False</Disabled>
<ManualLoad>False</ManualLoad>
<Name>UT2</Name>
<Path>C:\Program Files (x86)\Lockheed Martin\Prepar3D v3\Flight One Software\Ultimate Traffic 2/UT2Services.exe</Path>
<NewConsole>True</NewConsole>
</Launch.Addon>
The <Name> tag wasn't closed correctly, and the <Path> opening tag was entirely missing. Also, inserting the whole simulator path is redundant if you need to refer to an addon that is installed there so, it could have been better written like this:
<Launch.Addon>
<Disabled>False</Disabled>
<ManualLoad>False</ManualLoad>
<Name>UT2</Name>
<Path>Flight One Software\Ultimate Traffic 2/UT2Services.exe</Path>
<NewConsole>True</NewConsole>
</Launch.Addon>
