why can't buy the skill books

[yjbytyx]

hello guys,i use the X-pasa server files ,and i play FA in game,but why i can't buy offensive bless and curse remove skill book even use the npc fix files?can someone help me? thank you !

here is the wosrv log:
[Sat Jun 13 2020 02:29:32.178791 3822492528]: [##ERROR##] OnCSCBuySkillBook(): No Selling Skill Book: CharIdx(16), WorldIdx(1), NpcIdx(2), SetIdx(110), SkillIdx(238:470)
[Sat Jun 13 2020 02:29:32.179496 3822492528]: [##ERROR##] SERVER_RESULT::SKILL_BOOK::FAIL_NO_SELLING_BOOK is raised in OnCSCBuySkillBook() (Proc/Inventory.cpp:3483)
[Sat Jun 13 2020 02:29:34.868742 3822492528]: [##ERROR##] OnCSCBuySkillBook(): No Selling Skill Book: CharIdx(16), WorldIdx(1), NpcIdx(2), SetIdx(110), SkillIdx(238:470)
[Sat Jun 13 2020 02:29:34.868812 3822492528]: [##ERROR##] SERVER_RESULT::SKILL_BOOK::FAIL_NO_SELLING_BOOK is raised in OnCSCBuySkillBook() (Proc/Inventory.cpp:3483)

[MentaL]