Error converting

[Løque]

When i try to convert phpbb3 to smf i get this error:

Converting posts (this may take some time)... Unsuccessful!
This query:

    INSERT INTO `forum`.smf_messages
    (ID_MSG, ID_TOPIC, posterTime, ID_MEMBER, SUBSTRING(m.subject, 1, 255), posterEmail, posterName, ID_BOARD, posterIP, body, modifiedName, icon)

Caused the error:

    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 'SUBSTRING(m.subject, 1, 255), posterEmail, posterName, ID_BOARD, posterIP, body,' at line 2

[SleePy]

Which converter did you use? Have you tried the latest ones on the downloads page?