Error : fout bij het ophalen van resultset van database

SELECT presentaties_id, presentaties_title, presentaties_text, presentaties_link, files_filename, files_id, files_extension FROM presentaties LEFT JOIN files ON TRIM(BOTH '*' FROM presentaties.presentaties_bestand) = files.files_id WHERE presentaties_module_id = ORDER BY presentaties_order, presentaties_id

1064: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'ORDER BY presentaties_order, presentaties_id' at line 12