Ill try to change client version to 2012-05-15 and the error gone. I can right click all the item state above.
Edit: Already solve the problem it cause by a long item description in 'idnum2itemdesctable.txt'
Example:
From this
13170#
A masterpiece that brings the power of the Rifles to the max. This beautiful gun steals the heart of the Gunslingers, and its high performance will put a holethrough the heart of the enemy. Only downside is that, due to the fact it is lever-action oriented, the Attack Speed is somewhat poor.
HIT + 20, Critical Rate + 50, Attack Speed - 5%.
Class :^777777 Rifle^000000
Attack :^777777 138^000000
Weight :^777777 77^000000
Property :^777777 Neutral^000000
Weapon Level :^777777 3^000000
Required Level :^777777 70^000000
Applicable Job :^777777 Gunslinger^000000
#
To This:
13170#
A masterpiece that brings the power of the Rifles to the max. This beautiful gun steals the heart of the Gunslingers, and its high performance will put a hole
through the heart of the enemy. Only downside is that, due to the fact it is lever-action oriented, the Attack Speed is somewhat poor.
HIT + 20, Critical Rate + 50, Attack Speed - 5%.
Class :^777777 Rifle^000000
Attack :^777777 138^000000
Weight :^777777 77^000000
Property :^777777 Neutral^000000
Weapon Level :^777777 3^000000
Required Level :^777777 70^000000
Applicable Job :^777777 Gunslinger^000000
#
Do it to all item that gave you errors.