An update of package dev.tkirch.wsc.gm.games from version 0.3.1 to 0.4.0 is not supported.
Stacktrace:
#0 /var/www/syntafin/dev/wsc_demo/lib/system/package/PackageInstallationScheduler.class.php(516): wcf\system\package\PackageInstallationScheduler->findShortestUpdateThread('dev.tkirch.wsc....', Array, '0.3.1', '0.4.0')#1 /var/www/syntafin/dev/wsc_demo/lib/system/package/PackageInstallationScheduler.class.php(104): wcf\system\package\PackageInstallationScheduler->updatePackage(17, '0.4.0')#2 /var/www/syntafin/dev/wsc_demo/lib/system/package/PackageInstallationScheduler.class.php(65): wcf\system\package\PackageInstallationScheduler->tryToInstallPackage(Object(wcf\data\package\Package), '0.4.0', true, false)#3 /var/www/syntafin/dev/wsc_demo/lib/data/package/update/PackageUpdateAction.class.php(648): wcf\system\package\PackageInstallationScheduler->buildPackageInstallationStack(false)#4 /var/www/syntafin/dev/wsc_demo/lib/data/package/update/PackageUpdateAction.class.php(599): wcf\data\package\update\PackageUpdateAction->createQueue('update')
#5 [internal function]: wcf\data\package\update\PackageUpdateAction->prepareUpdate()
#6 /var/www/syntafin/dev/wsc_demo/lib/data/AbstractDatabaseObjectAction.class.php(204): call_user_func(Array) 
#7 /var/www/syntafin/dev/wsc_demo/lib/action/AJAXProxyAction.class.php(75): wcf\data\AbstractDatabaseObjectAction->executeAction() 
#8 /var/www/syntafin/dev/wsc_demo/lib/action/AJAXInvokeAction.class.php(104): wcf\action\AJAXProxyAction->invoke() 
#9 /var/www/syntafin/dev/wsc_demo/lib/action/AbstractAction.class.php(47): wcf\action\AJAXInvokeAction->execute() 
#10 /var/www/syntafin/dev/wsc_demo/lib/action/AJAXInvokeAction.class.php(63): wcf\action\AbstractAction->run()
#11 /var/www/syntafin/dev/wsc_demo/lib/system/request/Request.class.php(83): wcf\action\AJAXInvokeAction->run() 
#12 /var/www/syntafin/dev/wsc_demo/lib/system/request/RequestHandler.class.php(96): wcf\system\request\Request->execute() 
#13 /var/www/syntafin/dev/wsc_demo/acp/index.php(9): wcf\system\request\RequestHandler->handle('wcf', true) 
#14 {main}