1016, missing gears, cant change class, and armory chest bug

Time: before Feb. 26 Technical Difficulties until now.(Timezone: GMT+7)
Frequency: always
Character Name: Milliana Melchiott
Race: Miqo'te F
World: Tonberry
Class: MNK 46, LNCR 26, WHM 50
Area: Mor Dhona. Little Ala Migho, Limsa Lower Deck

Steps:
- Played as MNK on Feb. 26 and registered for DR Low level, got 90k error upon entering and qutting dungeon.
- After DR, played as other class but when tried to switch back to MNK, got insufficient armory space error and all MNK gears were missing from armory chest (but only weapon marked as missing from gear set when MNK gear set displayed).
- Can't change to any class by equipping weapons. Every time I equip main weapon for another class, nothing happened. The only way to change class is by gear set.
- Played as LNCR on Feb. 28 and got 90k error when teleporting. Can't log back in because 1016 error until maintenance at Mar. 3
- Finally can log back in at Mar. 3 but all MNK gears still missing and still can't change class by equipping main weapon. Got system mail containing reason for 1016 and subtitute for the weapon deleted by admin.
- Found a way to play as MNK after equpping MNK weapon as BRD. I created a new MNK gear set and suddenly all gears on previous MNK gear set are marked as missing.
- On Mar. 6, I finally noticed that the maximum number of gear that can be stored on my armory chest is only 24 (Example: if my headgear armory chest contains 24 gears, when I got another gear it will placed in my inventory and if I tried to equip that gear, nothing happened).
- Mar. 6 11:35 PM, play as WHM and joined a Crystal Tower PF. Got 90k error and can't log back in because 1016 error.

Please help with those bugs as soon as you guys can. It's getting really annoying to get 1016 error twice in the last 7 days. Thank you in advance