Çözüldü Skript hata veriyor

[00:10:27] [Server thread/INFO]: [Skript] Enabling Skript v2.4
[00:10:28] [Server thread/WARN]: [Skript] Using this version of Skript on 1.8 is highly discouraged.
[00:10:28] [Server thread/WARN]: [Skript] Some features have been disabled; use older Skript to restore them.
[00:10:28] [Server thread/WARN]: [Skript] Also, there are probably bugs. And since 1.8 is not supported, they will not be fixed
[00:10:28] [Server thread/WARN]: [Skript] Material mappings for 1.8.8 are not available.
[00:10:28] [Server thread/WARN]: [Skript] Depending on your server software, some aliases may not work.
[00:10:28] [Server thread/ERROR]: Error occurred while enabling Skript v2.4 (Is it up to date?)
java.lang.NoSuchMethodError: org.bukkit.inventory.meta.PotionMeta.getBasePotionData()Lorg/bukkit/potion/PotionData;
    at ch.njol.skript.aliases.ItemData.compareItemMetas(ItemData.java:446) ~[?:?]
    at ch.njol.skript.aliases.ItemData.matchAlias(ItemData.java:377) ~[?:?]
    at ch.njol.skript.aliases.AliasesMap.exactMatch(AliasesMap.java:217) ~[?:?]
    at ch.njol.skript.aliases.AliasesProvider.addAlias(AliasesProvider.java:285) ~[?:?]
    at ch.njol.skript.aliases.AliasesParser.loadSingleAlias(AliasesParser.java:705) ~[?:?]
    at ch.njol.skript.aliases.AliasesParser.loadAlias(AliasesParser.java:605) ~[?:?]
    at ch.njol.skript.aliases.AliasesParser.load(AliasesParser.java:123) ~[?:?]
    at ch.njol.skript.aliases.Aliases.load(Aliases.java:504) ~[?:?]
    at ch.njol.skript.aliases.Aliases.load(Aliases.java:490) ~[?:?]
    at ch.njol.skript.aliases.Aliases.lambda$1(Aliases.java:473) ~[?:?]
    at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source) ~[?:1.8.0_231]
    at java.util.ArrayList.forEach(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.SortedOps$RefSortingSink.end(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.AbstractPipeline.copyInto(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.AbstractPipeline.evaluate(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.ReferencePipeline.forEach(Unknown Source) ~[?:1.8.0_231]
    at ch.njol.skript.aliases.Aliases.loadDirectory(Aliases.java:466) ~[?:?]
    at ch.njol.skript.aliases.Aliases.loadInternal(Aliases.java:432) ~[?:?]
    at ch.njol.skript.aliases.Aliases.load(Aliases.java:404) ~[?:?]
    at ch.njol.skript.Skript.onEnable(Skript.java:402) ~[?:?]
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:357) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:317) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:414) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:378) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:333) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:263) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:525) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at java.lang.Thread.run(Unknown Source) [?:1.8.0_231]

[20:34:34] [Server thread/INFO]: [Skript] Enabling Skript v2.5-alpha1
[20:34:34] [Server thread/INFO]: [Skript] Successfully generated the config and the example scripts.
[20:34:34] [Server thread/WARN]: [Skript] Using this version of Skript on 1.8 is highly discouraged.
[20:34:34] [Server thread/WARN]: [Skript] Some features have been disabled; use older Skript to restore them.
[20:34:34] [Server thread/WARN]: [Skript] Also, there are probably bugs. And since 1.8 is not supported, they will not be fixed
[20:34:34] [Server thread/WARN]: [Skript] Material mappings for 1.8.8 are not available.
[20:34:34] [Server thread/WARN]: [Skript] Depending on your server software, some aliases may not work.
[20:34:34] [Server thread/ERROR]: Error occurred while enabling Skript v2.5-alpha1 (Is it up to date?)
java.lang.NoSuchMethodError: org.bukkit.inventory.meta.PotionMeta.getBasePotionData()Lorg/bukkit/potion/PotionData;
    at ch.njol.skript.aliases.ItemData.compareItemMetas(ItemData.java:446) ~[?:?]
    at ch.njol.skript.aliases.ItemData.matchAlias(ItemData.java:377) ~[?:?]
    at ch.njol.skript.aliases.AliasesMap.exactMatch(AliasesMap.java:217) ~[?:?]
    at ch.njol.skript.aliases.AliasesProvider.addAlias(AliasesProvider.java:285) ~[?:?]
    at ch.njol.skript.aliases.AliasesParser.loadSingleAlias(AliasesParser.java:705) ~[?:?]
    at ch.njol.skript.aliases.AliasesParser.loadAlias(AliasesParser.java:605) ~[?:?]
    at ch.njol.skript.aliases.AliasesParser.load(AliasesParser.java:123) ~[?:?]
    at ch.njol.skript.aliases.Aliases.load(Aliases.java:504) ~[?:?]
    at ch.njol.skript.aliases.Aliases.load(Aliases.java:490) ~[?:?]
    at ch.njol.skript.aliases.Aliases.lambda$1(Aliases.java:473) ~[?:?]
    at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source) ~[?:1.8.0_231]
    at java.util.ArrayList.forEach(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.SortedOps$RefSortingSink.end(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.AbstractPipeline.copyInto(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.AbstractPipeline.evaluate(Unknown Source) ~[?:1.8.0_231]
    at java.util.stream.ReferencePipeline.forEach(Unknown Source) ~[?:1.8.0_231]
    at ch.njol.skript.aliases.Aliases.loadDirectory(Aliases.java:466) ~[?:?]
    at ch.njol.skript.aliases.Aliases.loadInternal(Aliases.java:432) ~[?:?]
    at ch.njol.skript.aliases.Aliases.load(Aliases.java:404) ~[?:?]
    at ch.njol.skript.Skript.onEnable(Skript.java:405) ~[?:?]
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot.jar:git-Spigot-db6de12-18fbb24]
    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:357) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:317) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:414) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:378) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:333) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:263) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:525) [spigot.jar:git-Spigot-db6de12-18fbb24]
    at java.lang.Thread.run(Unknown Source) [?:1.8.0_231]