Tradeshops just spamming errors for everything

Stack trace

https://mclo.gs/qaJnmyS

I'm getting errors for every single thing related to TradeShops: if I execute a command, if I place a sign and rename it to [Trade], if I interact with it. What can it be done to fix it? Thanks

Plugin list

AClearChat, AdvancedPortals, AdvancedRegionMarket, ajLeaderboards, atomwings, AuctionHouse, Back, BetterRTP, BiomeTP, BlockLocker ChatFilter, ChunkHoppers, Citizens, CitizensGUI, CitizensShop, ClansLite, CleanStaffChat, CoreProtect, CrazyEnchantments, CustomCommand, CustomDrops, DeathCoordinates, DecentHolograms, DiamondBank, EpicRename, Essentials, ExcellentCrates, floodgate, GCore, Geyser-Spigot,GriefPrevention, GSit, GUIPlus, HeadDatabase, HelpOP, HolographicDisplays, InteractiveChat, InvisibleItemFrames, Invsort, ItemEditor, JoinMessagePlus, LPC, LuckPerms, Multiverse-Core, Multiverse-Inventories, Multiverse-Portals, NexEngine, NoEndermanGrief, NoJumpBreakCrops, OfflineTeleportHere, OpenInv, PinataParty, PlaceholderAPI, PlayerReport, *Playtimes, PrivateMessages, ProtocolLib, PvPManager, SilkSpawners Skript, SmoothTimber, SuperbVote, TAB, Tebex, Trademarker, TradeShop, TradeSystem, UltimateAutoRestart, UltraCosmetics Vault, ViaBackwards, ViaVersion, Votifier, Vouchers, Vulcan, WorldEdit, WorldEditSelectionVisualizer, WorldGuard, WorldGuardExtraFlags

Actions to reproduce (if known)

Just interact with anything related to TradeShops at all, anything gives an error and yesterday all commands worked (Didn't do anything at all)

TradeShop version and Minecraft version (CraftBukkit/Spigot/Paper/...)

This server is running Paper version git-Paper-448 (MC: 1.20.4) (Implementing API version 1.20.4-R0.1-SNAPSHOT) (Git: a0931f4)

TradeShop 2.6.1-STABLE by Lori00 & KillerOfPie

Agreements

[X] I have searched for and ensured there isn't already an open issue regarding this.
[X] My version of Minecraft and TradeShop are supported by the TradeShop Dev Team (when in doubt, first ask on the Discord).

Other

No response

Tradeshop / TradeShop