How to fix Unknown unit layout and what is the cause of this ?

[Poring King]

[Error]: unknown unit layout at skill 86
[Error]: unknown unit layout at skill 139
[Error]: unknown unit layout at skill 247
[Error]: unknown unit layout at skill 331
[Error]: unknown unit layout at skill 361
[Error]: unknown unit layout at skill 394
[Error]: unknown unit layout at skill 517
[Error]: unknown unit layout at skill 525
[Error]: Skill '696' is undefined! status.cpp:185::set_sc
[Error]: set_sc: Unsupported skill id 696 (SC: 137. Icon: -1)
[Error]: Skill '82' is undefined! status.cpp:185::set_sc
[Error]: set_sc: Unsupported skill id 82 (SC: 2. Icon: -1)
[Error]: Skill '377' is undefined! status.cpp:185::set_sc
[Error]: set_sc: Unsupported skill id 377 (SC: 119. Icon: 114)
[Error]: Skill '715' is undefined! status.cpp:185::set_sc
[Error]: set_sc: Unsupported skill id 715 (SC: 668. Icon: 713)

I suddenly get this error when i restart my server i really dont know how to fix this because i encounter this problem for the first time . Any help or idea would be a good help . i tried to copy the latest status.cpp in the rAthena git to reupdate but still the error is there . 
 

Edited April 5, 2018 by Poring King