I would restart Apache2 but there comes an Error
$ sudo service apache2 start
Starting web server apache2
Action 'start' failed.
The Apache error log may have more information.
But all error logs in "/var/log/apache2/" are empty.
Edit: The Files are at "/var/log/apache2" and there are several entries from previous Problems but this Task doesn't create any new etry ...
Where is the Problem?
It was a error in the SSL Certificate and the path to the "error.log" are changed in the vHost configuration.
If you don't need SSL (i don't because i'm running a local system) simply disable all vHost HTTPS/SSL entrys in the configuration by command line for line out.
Syntax errors in the config file seem to cause problems. I found what the problem was by going to the directory and excuting this from the command line.
httpd -e info
This gave me the error
Syntax error on line 156 of D:/.../Apache Software Foundation/Apache2.2/conf/httpd.conf:
Invalid command 'PHPIniDir', perhaps misspelled or defined by a module not included in the server configuration