Two requirements to open level 30 leveling aid box.

Onward to new horizons

or

Season Fughar's memorandum chapter 2 completed.

I used the fughar's timepiece to start playing as a Giant class I created in 2017

and as it is so old, it is stuck with pre-revamped quest line without "Onward to new horizons" nor "Fughar's memorarndum chapter 2" because of timepiece/completed on Kuno.

If anyone knows solution to this I will gladly take it, otherwise please look into this..