[ERROR] .... Error occurred while enabling VillagerTradeLimiter v1.1.3 (Is it up to date?)

java.lang.NoSuchMethodError: java.lang.String.isBlank()Z

at com.pretzel.dev.villagertradelimiter.ConfigUpdater.updateConfig(ConfigUpdater.java:33) ~[?:?]

at com.pretzel.dev.villagertradelimiter.VillagerTradeLimiter.loadSettings(VillagerTradeLimiter.java:68) ~[?:?]

at com.pretzel.dev.villagertradelimiter.VillagerTradeLimiter.onEnable(VillagerTradeLimiter.java:51) ~[?:?]

at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.16.4.jar:git-Paper-394]

at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:380) ~[patched_1.16.4.jar:git-Paper-394]

at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:483) ~[patched_1.16.4.jar:git-Paper-394]

at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugin(CraftServer.java:501) ~[patched_1.16.4.jar:git-Paper-394]

at org.bukkit.craftbukkit.v1_16_R3.CraftServer.enablePlugins(CraftServer.java:415) ~[patched_1.16.4.jar:git-Paper-394]

at net.minecraft.server.v1_16_R3.MinecraftServer.loadWorld(MinecraftServer.java:464) ~[patched_1.16.4.jar:git-Paper-394]

at net.minecraft.server.v1_16_R3.DedicatedServer.init(DedicatedServer.java:239) ~[patched_1.16.4.jar:git-Paper-394]

at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:931) ~[patched_1.16.4.jar:git-Paper-394]

at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:173) ~[patched_1.16.4.jar:git-Paper-394]

at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]