Failed to load OptiFabric

My Windows username has a space in it so it should be user%20name, anything to do with this error?

java.nio.file.FileSystemException: C:\Users\usern~1\AppData\Local\Temp\optifabric13944065712992049270: The file or directory is corrupted and unreadable
at java.base/sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:92)
at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:103)
at java.base/sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:108)
at java.base/sun.nio.fs.WindowsFileSystemProvider.createDirectory(WindowsFileSystemProvider.java:521)
at java.base/java.nio.file.Files.createDirectory(Files.java:700)
at java.base/java.nio.file.TempFileHelper.create(TempFileHelper.java:134)
at java.base/java.nio.file.TempFileHelper.createTempDirectory(TempFileHelper.java:171)
at java.base/java.nio.file.Files.createTempDirectory(Files.java:1017)
at me.modmuss50.optifabric.mod.OptifineSetup.getRuntime(OptifineSetup.java:99)
at me.modmuss50.optifabric.mod.OptifabricSetup.run(OptifabricSetup.java:43)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at com.chocohead.mm.Plugin.getMixins(Plugin.java:340)
at org.spongepowered.asm.mixin.transformer.PluginHandle.getMixins(PluginHandle.java:128)
at org.spongepowered.asm.mixin.transformer.MixinConfig.postInitialise(MixinConfig.java:796)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.prepareConfigs(MixinProcessor.java:568)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.select(MixinProcessor.java:462)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.checkSelect(MixinProcessor.java:438)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:290)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:247)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:150)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:155)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:467)
at net.fabricmc.loader.impl.util.DefaultLanguageAdapter.create(DefaultLanguageAdapter.java:50)
at net.fabricmc.loader.impl.entrypoint.EntrypointStorage$NewEntry.getOrCreate(EntrypointStorage.java:117)
at net.fabricmc.loader.impl.entrypoint.EntrypointContainerImpl.getEntrypoint(EntrypointContainerImpl.java:53)
at net.fabricmc.loader.impl.entrypoint.EntrypointUtils.invoke0(EntrypointUtils.java:47)
at net.fabricmc.loader.impl.entrypoint.EntrypointUtils.invoke(EntrypointUtils.java:35)
at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:157)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:71)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

This is from Tlauncer dev console, the default MC launcher does not work for me any more.

[14:26:03] [main/INFO]: SpongePowered MIXIN Subsystem Version=0.8.5 Source=file:/C:/Users/user%20name/AppData/Roaming/.minecraft/libraries/net/fabricmc/sponge-mixin/0.11.2+mixin.0.8.5/sponge-mixin-0.11.2+mixin.0.8.5.jar Service=Knot/Fabric Env=CLIENT
[14:26:22] [main/INFO]: Compatibility level set to JAVA_16
Setting up optifine for the first time, this may take a few seconds.
Failed to setup optifine:
java.nio.file.FileSystemException: C:\Users\usern~1\AppData\Local\Temp\optifabric9774711148217021630: The file or directory is corrupted and unreadable

This is the thing, the file or folder isnt there....

Close this one off, found the issue. My entire .appdata/local/temp folder was corrupted, changed the location of the temp folder and things are working.

Here's what you're dealing with:
You are dealing with a potentially corrupted or unreadable file located in your Temp folder. My solution? Try and remove the file "optifabric9774711148217021630" from your Temp folder and see if it works. If it doesn't just wait for someone else to answer your question. Make sure to replace it after.