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Well-known member
Where have you moved the data and internal data directories?

Are the permissions correct on them?

Data directory is moved to ../../static/forums/data, with permissions (actually I forgot, I just moved the directory back inside). Internal data is moved to ../../../static-private/forums/internal-data with permission 777.


XenForo developer
Staff member
Search the control panel for "attachmentMaxPerMessage". This should not be able to be set lower than 0. If it is, that's the problem.

If it's not, it's an add-on that's the problem.