help not sure what i did

[Nfs154]

[08Mar2020 10:09:28.186] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher running: args [--username, nfs154, --version, 1.15.2-forge-31.1.0, --gameDir, C:\Users\matt\AppData\Roaming\.minecraft, --assetsDir, C:\Users\matt\AppData\Roaming\.minecraft\assets, --assetIndex, 1.15, --uuid, fc21779408674d329a9ea2a9db7dac0f, --accessToken, ????????, --userType, mojang, --versionType, release, --launchTarget, fmlclient, --fml.forgeVersion, 31.1.0, --fml.mcVersion, 1.15.2, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20200122.131323]
[08Mar2020 10:09:28.200] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher 5.0.0-milestone.4+67+b1a340b starting: java version 1.8.0_51 by Oracle Corporation
[08Mar2020 10:09:29.034] [main/INFO] [net.minecraftforge.fml.loading.FixSSL/CORE]: Added Lets Encrypt root certificates as additional trust
[08Mar2020 10:09:30.193] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModFileParser/LOADING]: Mod file Mod File: C:\Users\matt\AppData\Roaming\.minecraft\mods\buildcraft-7.1.22-builders.jar is missing mods.toml file
[08Mar2020 10:09:30.193] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModDiscoverer/SCAN]: File C:\Users\matt\AppData\Roaming\.minecraft\mods\buildcraft-7.1.22-builders.jar has been ignored - it is invalid
[08Mar2020 10:09:30.193] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModFileParser/LOADING]: Mod file Mod File: C:\Users\matt\AppData\Roaming\.minecraft\mods\buildcraft-robotics-7.99.24.5.jar is missing mods.toml file
[08Mar2020 10:09:30.208] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModDiscoverer/SCAN]: File C:\Users\matt\AppData\Roaming\.minecraft\mods\buildcraft-robotics-7.99.24.5.jar has been ignored - it is invalid
[08Mar2020 10:09:33.761] [main/INFO] [cpw.mods.modlauncher.LaunchServiceHandler/MODLAUNCHER]: Launching target 'fmlclient' with arguments [--version, 1.15.2-forge-31.1.0, --gameDir, C:\Users\matt\AppData\Roaming\.minecraft, --assetsDir, C:\Users\matt\AppData\Roaming\.minecraft\assets, --uuid, fc21779408674d329a9ea2a9db7dac0f, --username, nfs154, --assetIndex, 1.15, --accessToken, ????????, --userType, mojang, --versionType, release]
[08Mar2020 10:09:40.224] [Render thread/INFO] [net.minecraft.client.Minecraft/]: Setting user: nfs154
[08Mar2020 10:10:04.829] [Render thread/INFO] [net.minecraft.client.Minecraft/]: Backend library: LWJGL version 3.2.2 build 10
[08Mar2020 10:10:09.510] [modloading-worker-1/INFO] [net.minecraftforge.common.ForgeMod/FORGEMOD]: Forge mod loading, version 31.1.0, for MC 1.15.2 with MCP 20200122.131323
[08Mar2020 10:10:09.511] [modloading-worker-1/INFO] [net.minecraftforge.common.MinecraftForge/FORGE]: MinecraftForge v31.1.0 Initialized
[08Mar2020 10:10:18.573] [Render thread/INFO] [com.mojang.text2speech.NarratorWindows/]: Narrator library for x64 successfully loaded
[08Mar2020 10:10:18.714] [Render thread/INFO] [net.minecraft.resources.SimpleReloadableResourceManager/]: Reloading ResourceManager: Default, Mod Resources
[08Mar2020 10:11:29.754] [Forge Version Check/INFO] [net.minecraftforge.fml.VersionChecker/]: [forge] Starting version check at https://files.minecraftforge.net/maven/net/minecraftforge/forge/promotions_slim.json
[08Mar2020 10:11:31.437] [Forge Version Check/INFO] [net.minecraftforge.fml.VersionChecker/]: [forge] Found status: UP_TO_DATE Current: 31.1.0 Target: null
[08Mar2020 10:11:41.640] [Render thread/INFO] [net.minecraft.client.audio.SoundSystem/]: OpenAL initialized.
[08Mar2020 10:11:41.643] [Render thread/INFO] [net.minecraft.client.audio.SoundEngine/SOUNDS]: Sound engine started
[08Mar2020 10:11:42.334] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 1024x512x4 minecraft:textures/atlas/blocks.png-atlas
[08Mar2020 10:11:42.750] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 128x128x4 minecraft:textures/atlas/signs.png-atlas
[08Mar2020 10:11:42.753] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x512x4 minecraft:textures/atlas/banner_patterns.png-atlas
[08Mar2020 10:11:42.775] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x512x4 minecraft:textures/atlas/shield_patterns.png-atlas
[08Mar2020 10:11:42.792] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 256x256x4 minecraft:textures/atlas/chest.png-atlas
[08Mar2020 10:11:42.799] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x256x4 minecraft:textures/atlas/beds.png-atlas
[08Mar2020 10:11:42.807] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x256x4 minecraft:textures/atlas/shulker_boxes.png-atlas
[08Mar2020 10:11:45.275] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 256x256x0 minecraft:textures/atlas/particles.png-atlas
[08Mar2020 10:11:45.304] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 256x256x0 minecraft:textures/atlas/paintings.png-atlas
[08Mar2020 10:11:45.308] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 128x128x0 minecraft:textures/atlas/mob_effects.png-atlas

 

 

This is what it gives me i cant load any mod packs in 
 

[DaemonUmbra]

If you're referring to BuildCraft robotics, which I see in the log, that looks like a pre-1.13 mod, please make sure you're only using mods designed for the same version of Minecraft that you're using.