Crash Report

---- Minecraft Crash Report ----
// There are four lights!

Time: 01/04/21, 11:17
Description: Updating screen events

java.lang.RuntimeException: Couldn't create a method handler for the field
	at com.thealtening.auth.service.FieldAdapter.<init>(FieldAdapter.java:55)
	at com.thealtening.auth.service.ServiceSwitcher.<init>(ServiceSwitcher.java:33)
	at com.thealtening.auth.TheAlteningAuthentication.<init>(TheAlteningAuthentication.java:38)
	at com.thealtening.auth.TheAlteningAuthentication.withService(TheAlteningAuthentication.java:79)
	at com.thealtening.auth.TheAlteningAuthentication.mojang(TheAlteningAuthentication.java:70)
	at MadCatClient.AltManager.GuiAltManager.<init>(GuiAltManager.java:24)
	at MadCatClient.UI.MainMenu.actionPerformed(MainMenu.java:59)
	at net.minecraft.client.gui.GuiScreen.mouseClicked(GuiScreen.java:503)
	at net.minecraft.client.gui.GuiScreen.handleMouseInput(GuiScreen.java:599)
	at net.minecraft.client.gui.GuiScreen.handleInput(GuiScreen.java:568)
	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1778)
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1105)
	at net.minecraft.client.Minecraft.run(Minecraft.java:423)
	at net.minecraft.client.main.Main.main(Main.java:113)
	at Start.main(Start.java:11)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at com.thealtening.auth.service.FieldAdapter.<init>(FieldAdapter.java:55)
	at com.thealtening.auth.service.ServiceSwitcher.<init>(ServiceSwitcher.java:33)
	at com.thealtening.auth.TheAlteningAuthentication.<init>(TheAlteningAuthentication.java:38)
	at com.thealtening.auth.TheAlteningAuthentication.withService(TheAlteningAuthentication.java:79)
	at com.thealtening.auth.TheAlteningAuthentication.mojang(TheAlteningAuthentication.java:70)
	at MadCatClient.AltManager.GuiAltManager.<init>(GuiAltManager.java:24)
	at MadCatClient.UI.MainMenu.actionPerformed(MainMenu.java:59)
	at net.minecraft.client.gui.GuiScreen.mouseClicked(GuiScreen.java:503)
	at net.minecraft.client.gui.GuiScreen.handleMouseInput(GuiScreen.java:599)
	at net.minecraft.client.gui.GuiScreen.handleInput(GuiScreen.java:568)

-- Affected screen --
Details:
	Screen name: MadCatClient.UI.MainMenu
Stacktrace:
	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1778)
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1105)
	at net.minecraft.client.Minecraft.run(Minecraft.java:423)
	at net.minecraft.client.main.Main.main(Main.java:113)
	at Start.main(Start.java:11)

-- System Details --
Details:
	Minecraft Version: 1.8.8
	Operating System: Windows 10 (amd64) version 10.0
	CPU: 12x AMD Ryzen 5 2600 Six-Core Processor
	Java Version: 15.0.2, Oracle Corporation
	Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 861838216 bytes (821 MB) / 1073741824 bytes (1024 MB) up to 1073741824 bytes (1024 MB)
	JVM Flags: 3 total; -XX:+ShowCodeDetailsInExceptionMessages -Xmx1024M -Xms1024M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: mcp
	LWJGL: 2.9.4
	OpenGL: Radeon RX 580 Series GL version 4.6.14757 Compatibility Profile Context 20.11.2 27.20.14501.18003, ATI Technologies Inc.
	GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

	Using VBOs: No
	Is Modded: Very likely; Jar signature invalidated
	Type: Client (map_client.txt)
	Resource Packs:
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	CPU: 12x AMD Ryzen 5 2600 Six-Core Processor
	OptiFine Version: OptiFine_1.8.8_HD_U_H8
	Render Distance Chunks: 8
	Mipmaps: 4
	Anisotropic Filtering: 1
	Antialiasing: 0
	Multitexture: false
	Shaders: null
	OpenGlVersion: 4.6.14757 Compatibility Profile Context 20.11.2 27.20.14501.18003
	OpenGlRenderer: Radeon RX 580 Series
	OpenGlVendor: ATI Technologies Inc.
	CpuCount: 12