<SimBase.Document id="add-on" version="4,0" Type="AddOnXml">
<AddOn.Name>AIGAIM AI Traffic</AddOn.Name>
<AddOn.Description>
The default Alpha India Group Addon for adding AI Traffic by the OCI-Modul of AIG AI Manager
</AddOn.Description>
<AddOn.Component>
<Category>SimObjects</Category>
<Path>D:\AIG P3D\AIGAIM - OCI\SimObjects</Path>
</AddOn.Component>
<AddOn.Component>
<Category>Effects</Category>
<Path>D:\AIG P3D\AIGAIM - OCI\Effects</Path>
</AddOn.Component>
<AddOn.Component>
<Category>Texture</Category>
<Path>D:\AIG P3D\AIGAIM - OCI\Texture</Path>
</AddOn.Component>
<AddOn.Component>
<Category>Scripts</Category>
<Path>D:\AIG P3D\AIGAIM - OCI\Scripts</Path>
</AddOn.Component>
<AddOn.Component>
<Category>Scenery</Category>
<Path>D:\AIG P3D\AIGAIM - OCI\Airports\scenery</Path>
<Name>AIGAIM Airports</Name>
<Layer>146</Layer>
</AddOn.Component>
<AddOn.Component>
<Category>Scenery</Category>
<Path>D:\AIG P3D\AIGAIM - OCI\Traffic Files\scenery</Path>
<Name>AIGAIM AI Traffic Files</Name>
<Layer>145</Layer>
</AddOn.Component>
</SimBase.Document>
replace the content of your XML with the part above and try again.