4
Can you get a restore from your webhost?
Otherwise there is also a downgrade script available:
XOOPS 2.2.3 to 2.0.x downgrade scriptThis should help you out there.
On a sidenote:
Your database is more important than your files since the files (at least for XOOPS and installed modules) you can always get again. But not the data in your db. Therefore if you host does not provide efficient backup you should from time to time backup it anyway.
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