1.15.2 Paper | 20 TPS | 300+ Ping | Help! :(

I own a server which host is locate at Hong Kong, usually we have 2-10ms in normal playing.

But today, all players suddenly increase ping but i cant find the reason.

Please Help :frowning:

Here is the Timings report:
https://timings.aikar.co/?id=025faab5acca42d69968d7862576925a

Plugins (48):
BannerMaker, BetterSleeping3, BossBarHealth, Citizens, CitizensCMD, ClearLag, CoreProtect, CrazyAuctions, DiscordSRV, DynamicShop, EpicBackpacks, Essentials, EssentialsChat, EssentialsSpawn, EZRanksPro, GCore, GlowAPI*, GSit, GUIPlus, HolographicDisplays, ImageOnMap, Jobs, LibsDisguises, LockettePro, LuckPerms, MangoQuest, mcMMO, MMOCore, MMOItems, MMOLib, MobArena, MOTD, Multiverse-Core, MythicMobs, NametagEdit*, PacketListenerApi*, PlaceholderAPI, PlugMan, ProtocolLib, Residence, Shopkeepers, TabList, TitleManager, TradePlus, TreasureChest, Vault, WorldBorder, WorldEdit

Version:
Paper version git-Paper-77 (MC: 1.15.2) (Implementing API version 1.15.2-R0.1-SNAPSHOT)

Lo there,
What was the time you felt the big ping?
Might have been related to a internal server backup, since your timmings are between late evening.

Regards