What I am saying is you need to read the upgrade or install directions for the plugins this
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I looked at our code it is fine. You need to actually generate a new xml file.
Looks to me like you have some xml installed with wrong paths as I noted in my reply.
Look at the server path your forum is on
Look at the server path your plugin is configured to use
Do you see what I mean here?
Our plugins in our code have no paths in them until such time as you generate the xml in our admin panel. This requires you to have the install directory present and follow the steps outlined.
You can also try editing the actual classifieds global variables plugin in your plugin manager if you do not want to regenerate the xml and update any paths database information there.