Atlassian Plugin SDK Confluence Error 404 Page not found

[Idk]

Good day internet people. I am new here and hope I didn't made a mistake with writing and posting this.

I want to create a Confluence Plugin. The plugin should later run on Confluence (on self hosted server)

I started with the HelloWorld tutorial. I downloaded the source code from BitBucked.

I installed Atlassian Plugin SDK. I downloaded JDK 10.

I start it with atlas-run. I get an URL. Example: http://CSTRLLE52030799:1990/confluence

But when I open the URL in Browser I get most times Browser Error 404 missing page. 

Sometimes I get to the tomcat page Error 404 missing page.

When I open http://CSTRLLE52030799:1990/manager/html there is written that /confluence running is false.  If I press start /confluence then: 

FAIL - Application at context path /confluence could not be started

I really don't know what I am doing wrong? I tried other tutorials (theme, first blueprint), but none works. I don't know how to make it work. Maybe I did some noob dumb mistake, but I really can't find it alone. Pls help.

Now I will add some shell info (mostly I use PowerShell or cmd):

First Part:

C:\Users\ALO>atlas-version

ATLAS Version: 6.3.10
ATLAS Home: C:\MeineProgramme\AtlassianPluginSDK
ATLAS Scripts: C:\MeineProgramme\AtlassianPluginSDK\bin
ATLAS Maven Home: C:\MeineProgramme\AtlassianPluginSDK\apache-maven-3.2.1
AMPS Version: 6.3.15
--------
Executing: "C:\MeineProgramme\AtlassianPluginSDK\apache-maven-3.2.1\bin\mvn.bat" --version -gs C:\MeineProgramme\AtlassianPluginSDK\apache-maven-3.2.1/conf/settings.xml
Java HotSpot(TM) 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
Apache Maven 3.2.1 (ea8b2b07643dbb1b84b6d16e1f08391b666bc1e9; 2014-02-14T18:37:52+01:00)
Maven home: C:\MeineProgramme\AtlassianPluginSDK\apache-maven-3.2.1
Java version: 10.0.2, vendor: Oracle Corporation
Java home: C:\Program Files\Java\jdk-10.0.2
Default locale: de_DE, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "dos"
C:\Users\ALJOVIA>java -version
java version "10.0.2" 2018-07-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.2+13)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.2+13, mixed mode)

C:\Users\ALO> 

Third Part from Tomcat Server:

http://cstrlle52030799:1990/manager/html
Server Information

Tomcat Version: Apache Tomcat/8.0.36
JVM Version: 10.0.2+13
JVM Vendor: "Oracle Corporation"
OS Name: Windows 7
OS Version: 6.1
OS Architecture: amd64
Hostname: CSTRLLE52030799

 In comments I will try to add more Informations.

[Idk]

I would like to add my shell info when I run atlas-run.

But everytime when I try to add in this comment I get error: 

Error

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