την επόμενη φορά διάβασε πιο προσεχτικά το error.
το max των class είναι 118 και εσύ το πήγες μέχρι 136. (λογικά είναι για άλλο client)
INSERT INTO `skill_learn` (`npc_id`, `class_id`) VALUES
(50020, 0),
(50020, 1),
(50020, 2),
(50020, 3),
(50020, 4),
(50020, 5),
(50020, 6),
(50020, 7),
(50020, 8),
(50020, 9),
(50020, 10),
(50020, 11),
(50020, 12),
(50020, 13),
(50020, 14),
(50020, 15),
(50020, 16),
(50020, 17),
(50020, 18),
(50020, 19),
(50020, 20),
(50020, 21),
(50020, 22),
(50020, 23),
(50020, 24),
(50020, 25),
(50020, 26),
(50020, 27),
(50020, 28),
(50020, 29),
(50020, 30),
(50020, 31),
(50020, 32),
(50020, 33),
(50020, 34),
(50020, 35),
(50020, 36),
(50020, 37),
(50020, 38),
(50020, 39),
(50020, 40),
(50020, 41),
(50020, 42),
(50020, 43),
(50020, 44),
(50020, 45),
(50020, 46),
(50020, 47),
(50020, 48),
(50020, 49),
(50020, 50),
(50020, 51),
(50020, 52),
(50020, 53),
(50020, 54),
(50020, 55),
(50020, 56),
(50020, 57),
(50020, 88),
(50020, 89),
(50020, 90),
(50020, 91),
(50020, 92),
(50020, 93),
(50020, 94),
(50020, 95),
(50020, 96),
(50020, 97),
(50020, 98),
(50020, 99),
(50020, 100),
(50020, 101),
(50020, 102),
(50020, 103),
(50020, 104),
(50020, 105),
(50020, 106),
(50020, 107),
(50020, 108),
(50020, 109),
(50020, 110),
(50020, 111),
(50020, 112),
(50020, 113),
(50020, 114),
(50020, 115),
(50020, 116),
(50020, 117),
(50020, 118);
βάλε αυτό, δουλεύει 100%.