LoneDev Everything else in the plugin is working fine, minus the font images. It might have something to do with my server (just had to reinstall a bunch of things) and not your plugin, but I see others having the same issue. Here is the full error log from my console.
[21:40:10] [Server thread/ERROR]: [ItemsAdder] Can't set file file attributes ia_img_cached_date, ia_img_height, ia_img_width: /webroot/simcraft MOVED TO NEW SERVER/server/plugins/ItemsAdder/contents/betterranks/textures/vipplus.png
[21:40:10] [Server thread/WARN]: java.nio.file.FileSystemException: /webroot/simcraft MOVED TO NEW SERVER/server/plugins/ItemsAdder/contents/betterranks/textures/vipplus.png: Error writing extended attribute 'ia_img_cached_date': Invalid argument
[21:40:10] [Server thread/WARN]: at java.base/sun.nio.fs.UnixUserDefinedFileAttributeView.write(UnixUserDefinedFileAttributeView.java:284)
[21:40:10] [Server thread/WARN]: at java.base/sun.nio.fs.UnixUserDefinedFileAttributeView.write(UnixUserDefinedFileAttributeView.java:265)
[21:40:10] [Server thread/WARN]: at java.base/sun.nio.fs.AbstractUserDefinedFileAttributeView.setAttribute(AbstractUserDefinedFileAttributeView.java:73)
[21:40:10] [Server thread/WARN]: at java.base/sun.nio.fs.AbstractFileSystemProvider.setAttribute(AbstractFileSystemProvider.java:81)
[21:40:10] [Server thread/WARN]: at java.base/java.nio.file.Files.setAttribute(Files.java:1919)
[21:40:10] [Server thread/WARN]: at ItemsAdder_3.5.0c-r2.jar//ia.m.iB.a(SourceFile:94)
[21:40:10] [Server thread/WARN]: at ItemsAdder_3.5.0c-r2.jar//ia.m.aJ.<init>(SourceFile:198)
[21:40:10] [Server thread/WARN]: at ItemsAdder_3.5.0c-r2.jar//ia.m.aI.aB(SourceFile:151)
[21:40:10] [Server thread/WARN]: at ItemsAdder_3.5.0c-r2.jar//ia.m.G.b(SourceFile:677)
[21:40:10] [Server thread/WARN]: at ItemsAdder_3.5.0c-r2.jar//ia.m.G.c(SourceFile:581)
[21:40:10] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftTask.run(CraftTask.java:101)
[21:40:10] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:480)
[21:40:10] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1480)
[21:40:10] [Server thread/WARN]: at net.minecraft.server.dedicated.DedicatedServer.b(DedicatedServer.java:447)
[21:40:10] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:1394)
[21:40:10] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1171)
[21:40:10] [Server thread/WARN]: at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:318)
[21:40:10] [Server thread/WARN]: at java.base/java.lang.Thread.run(Thread.java:833)