i play time zone gmt+7 thailand

yesterday EXP PROTECTION 30X REMAIN 16
today before event EXP PROTECTION buff picture 16 a normal and i log out game
start event i find EXP PROTECTION item buff disappear. i not know play bsw easy a normal found die waste exp-2%
observe EXP PROTECTION 30X REMAIN 16 Disappear. i cilck item EXP PROTECTION 30X 1/20/2016 item buff EXP PROTECTION 30X Disappear not show item buff EXP PROTECTION 30X a normal.

conclude
i waste
- EXP PROTECTION 30X REMAIN 16
- EXP PROTECTION 30X
- EXP-5%

Staff / GM / MOD to help fixed bug and item i cilck disappear. i bring back warehouse i or Storage i or
Storage itemmall or inventory

Chapter PROBLEM Booster Lv.78 Time play 1/20/2016 time 09.45-10.00 (GMT+7.0)