Maybe it has been turned on for a long time but there was nobody signed in to your server. I got this message too. but, there's no problem on any of the servers
oh, you mean this one:
[Debug]: at char.c:1002 - SELECT `char_id`,`account_id`,`char_num`,`name`,`class`,`base_level`,`job_level`,`base_exp`,`job_exp`,`zeny`,`str`,`agi`,`vit`,`int`,`dex`,`luk`,`max_hp`,`hp`,`max_sp`,`sp`,`status_point`,`skill_point`,`option`,`karma`,`manner`,`party_id`,`guild_id`,`pet_id`,`homun_id`,`elemental_id`,`hair`,`hair_color`,`clothes_color`,`weapon`,`shield`,`head_top`,`head_mid`,`head_bottom`,`last_map`,`last_x`,`last_y`,`save_map`,`save_x`,`save_y`,`partner_id`,`father`,`mother`,`child`,`fame`,`rename`,`delete_date` FROM `char` WHERE `char_id`=? LIMIT 1
and
[Debug]: at int_homun.c:134 - REPLACE INTO `skill_homunculus` (`homun_id`, `id`, `lv`) VALUES (169, ?, ?)
it might be an out-dated SQL tables