Installationsfehler bei 78%...

Fatal error: PHP warning in file /var/www/web88/html/wcf/lib/system/io/File.class.php (38): fopen(/var/www/web88/html/wcf/images/userpics/userpic-default.png) [function.fopen]: failed to open stream: Permission denied
   Information:
   error message: PHP warning in file /var/www/web88/html/wcf/lib/system/io/File.class.php (38): fopen(/var/www/web88/html/wcf/images/userpics/userpic-default.png) [function.fopen]: failed to open stream: Permission denied
  php version: 5.2.0-8+etch7
 wcf version: 1.0.4 pl 1
 file: /var/www/web88/html/wcf/lib/system/WCF.class.php (209)
 error code: 0
 date: 12/26/2007 05:47pm
 request: /wbb/acp/index.php?page=Package&step=FilesPackageInstallationPlugin&queueID=98&action=install&packageID=38&
 referer: http://www.xn--schlerhelfenschler-o6bm.de/wbb/acp/index.php?page=Package&step=execPackageInstallationPlugins&queueID=98&action=install&packageID=38&
   Stacktrace:
 #0 [internal function]: WCF::handleError(2, 'fopen(/var/www/...', '/var/www/web88/...', 38, Array)
#1 /var/www/web88/html/wcf/lib/system/io/File.class.php(38): fopen('/var/www/web88/...', 'wb')
#2 /var/www/web88/html/wcf/lib/system/io/Tar.class.php(196): File->__construct('/var/www/web88/...')
#3 /var/www/web88/html/wcf/lib/system/setup/FileInstaller.class.php(57): Tar->extract(4, '/var/www/web88/...')
#4 /var/www/web88/html/wcf/lib/system/setup/Installer.class.php(113): FileInstaller->createFile('images/userpics...', 4, Object(Tar))
#5 /var/www/web88/html/wcf/lib/system/setup/Installer.class.php(32): Installer->install()
#6 /var/www/web88/html/wcf/lib/acp/package/PackageInstallation.class.php(491): Installer->__construct('/var/www/web88/...', '/var/www/web88/...', Object(FilesFileHandler))
#7 /var/www/web88/html/wcf/lib/acp/package/plugin/FilesPackageInstallationPlugin.class.php(58): PackageInstallation->extractFiles('/var/www/web88/...', '/var/www/web88/...', Object(FilesFileHandler))
#8 /var/www/web88/html/wcf/lib/acp/package/PackageInstallationQueue.class.php(88): FilesPackageInstallationPlugin->install()
#9 /var/www/web88/html/wcf/lib/acp/package/PackageInstallation.class.php(306): PackageInstallationQueue->executePackageInstallationPlugin('FilesPackageIns...')
#10 /var/www/web88/html/wcf/lib/acp/package/PackageInstallation.class.php(39): PackageInstallation->install()
#11 /var/www/web88/html/wcf/lib/acp/page/PackagePage.class.php(42): PackageInstallation->__construct(98)
#12 /var/www/web88/html/wcf/lib/page/AbstractPage.class.php(36): PackagePage->show()
#13 /var/www/web88/html/wcf/lib/util/RequestHandler.class.php(56): AbstractPage->__construct()
#14 /var/www/web88/html/wcf/lib/util/RequestHandler.class.php(75): RequestHandler->__construct('Package', Array, 'page')
#15 /var/www/web88/html/wbb/acp/index.php( 8) : RequestHandler::handle(Array) 
#16 {main}
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