GIFs are not saved

[SaIteHim]

Describe the bug

• After the restart, the plugin does not save the gif

To Reproduce
Steps to reproduce the behavior:

1. Create a gif
2. Restart the server

Expected behavior
After the restart, the gif will be saved in the signs folder

Plugin Version
6.6

Server Version
Paper-Spigot 1.16.4

Other Plugins
antiRedstoneClock, AreaShop, AuctionHouse, BlockedCommands*, ChatItemDisplay, ChestShop, Citizens, ClearLag, CMI, CMILib, CommandSigns, CoreProtect, CraftBook, DeluxeMenus, EffectLib*, GSigns, HackedCore*, HackedServer*, HeadDatabase, HolographicDisplays, Images, InventoryRollbackPlus, Jobs, JumpPads, LibsDisguises, LocaleLib, LuckPerms, MBanProxyVPN*, mcMMO, MMOItems, MMOLib, MobArena, Multiverse-Core, Multiverse-Inventories, MyPet, MyPetGUI*, MythicMobs, PlaceholderAPI, PlugMan, ProtocolLib, pvparena, Quests, RandomBox, Shopkeepers, SkinsRestorer, TabList, TogglePvp*, Vault, VoidGenerator, Votifier, VoxelSniper, WorldEdit, WorldGuard, WorldGuardExtraFlags, XpBottles

Error Log
https://hastebin.com/quvexasiyi.md

Additional context
This error appears exactly at the moment when the server is shut down for a reboot. It saves static images, but after installing the gif and restarting the server to check the saving of the gif file, an error pops up...