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My Advice to you all that would even dare to use an alpha on a production site, is this.... ROLL BACK TO A STABLE VERSION OF XOOPS! Or wait till it is more a late RC (if you HAVE to use a non production version).
If you are going to test this then fine, do so on a test server and report bugs that you have found while testing and help Xoops in the long run.
I never ever give any help to anyone using my modules on a live site, because that is not the purpose of an Alpha version.
Go back to 2.45 until 2.5 is ready.