Anyone has any idea on how to fix this? Have been looking but all attemps has ben unfruitful

heres the log:

ERROR StatusLogger Unable to open jar:file:/C:/Users/WII!/AppData/Roaming/.minecraft/libraries/org/apache/logging/log4j/log4j-core/2.8.1/log4j-core-2.8.1.jar!/META-INF/log4j-provider.properties
java.io.FileNotFoundException: C:\Users\WII (The system cannot find the file specified)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:220)
at java.util.zip.ZipFile.<init>(ZipFile.java:150)
at java.util.jar.JarFile.<init>(JarFile.java:166)
at java.util.jar.JarFile.<init>(JarFile.java:103)
at sun.net.www.protocol.jar.URLJarFile.<init>(URLJarFile.java:93)
at sun.net.www.protocol.jar.URLJarFile.getJarFile(URLJarFile.java:69)
at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:94)
at sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:122)
at sun.net.www.protocol.jar.JarURLConnection.getInputStream(JarURLConnection.java:150)
at java.net.URL.openStream(URL.java:1038)
at org.apache.logging.log4j.util.ProviderUtil.loadProvider(ProviderUtil.java:79)
at org.apache.logging.log4j.util.ProviderUtil.<init>(ProviderUtil.java:66)
at org.apache.logging.log4j.util.ProviderUtil.lazyInit(ProviderUtil.java:124)
at org.apache.logging.log4j.util.ProviderUtil.hasProviders(ProviderUtil.java:108)
at org.apache.logging.log4j.LogManager.<clinit>(LogManager.java:89)
at net.minecraft.client.main.Main.<clinit>(SourceFile:30)
ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console...
Exception in thread "Client thread" java.lang.ExceptionInInitializerError
at ir.<clinit>(SourceFile:16)
at pc.<clinit>(SourceFile:22)
at cft.<clinit>(SourceFile:208)
at net.minecraft.client.main.Main.main(SourceFile:144)
Caused by: java.lang.NullPointerException
at java.io.Reader.<init>(Reader.java:78)
at java.io.InputStreamReader.<init>(InputStreamReader.java:113)
at gt.<init>(SourceFile:32)
at gt.<clinit>(SourceFile:24)
... 4 more
ERROR Main Caught previously unhandled exception :
ERROR Main java.lang.NoClassDefFoundError: Could not initialize class cft
java.lang.NoClassDefFoundError: Could not initialize class cft
at net.minecraft.client.main.Main$2.run(SourceFile:135)