Hi Zortry,
This usually happens when a piece of content (usually in a table) is wider than expected, causing the main part of the page to be too wide to fit in its space. We're looking into moving to a flexible-width layout to correct this and better accommodate a variety of layouts, but in the meantime, see if you can spot and correct the piece of content that is too wide.
Regards,
Alec Smecher
Open Journal Systems Team
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