Call stack (most recent first):

• log_message("copy(/home/aaronw/moodle-data/mahara/artefact/file...", 8, true, true, "/home/aaronw/www/mahara/htdocs/artefact/file/expor...", 170) at /home/aaronw/www/mahara/htdocs/lib/errors.php:446
• error(2, "copy(/home/aaronw/moodle-data/mahara/artefact/file...", "/home/aaronw/www/mahara/htdocs/artefact/file/expor...", 170, array(size 6)) at Unknown:0
• copy("/home/aaronw/moodle-data/mahara/artefact/file/orig...", "/home/aaronw/moodle-data/mahara/export/1/136262073...") at /home/aaronw/www/mahara/htdocs/artefact/file/export/html/lib.php:170
• HtmlExportFile->populate_filedir("/home/aaronw/moodle-data/mahara/export/1/136262073...", 0, null) at /home/aaronw/www/mahara/htdocs/artefact/file/export/html/lib.php:84
• HtmlExportFile->dump_export_data() at /home/aaronw/www/mahara/htdocs/export/html/lib.php:173
• PluginExportHtml->export() at /home/aaronw/www/mahara/htdocs/export/download.php:105