Browser Plugin fails to load game library

Lightspark browser plugin 0.7.2-3+b1 fails to play the following URL in Chromium Browser:

URL: http://de.m2p.com/spielen/backgammon
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.116 Safari/537.36

ERROR: Download error http://games.m2p.com/backgammon/Backgammon.swf/lib/common.swf?v=0.0.50

The dowload manager tries to load the wrong URL path:
http://games.m2p.com/backgammon/Backgammon.swf/lib/common.swf?v=0.0.50

The correct path would most probably be:
http://games.m2p.com/backgammon/lib/common.swf?v=0.0.50

Log is attached:

INFO: Lightspark version 0.7.2 Copyright 2009-2013 Alessandro Pignotti and others
ERROR: AUDIO BACKEND: Connection to PulseAudio server failed
INFO: A plugin was found. Adding it to the list.
INFO: The plugin Pulse plugin output only was added with backend: pulseaudio
NOT_IMPLEMENTED: The SDL audio plugin does only support one concurrent stream!
INFO: A plugin was found. Adding it to the list.
INFO: The plugin SDL plugin was added with backend: sdl
INFO: the selected backend is: pulseaudio
INFO: get_plugin: pulseaudio
ERROR: AUDIO BACKEND: Connection to PulseAudio server failed
INFO: RenderThread this=0x7fc4ed28ebf0
INFO: Creating input thread
INFO: From Browser: Window 39845937 Width: 768 Height: 576
ERROR: Resize not supported
INFO: PLUGIN: NPScriptObjectGW returned to browser
INFO: Newstream for http://de.m2p.com/coupons.swf
INFO: NET: Downloading to memory
INFO: zlib compressed SWF file: Version 9
INFO: FrameRate 24
INFO: Newstream for http://games.m2p.com/backgammon/Backgammon.swf?v=1.0.21
INFO: Creating VM
ERROR: URL query parameters has duplicate key 'v' - ignoring
INFO: SWF Metadata:
        format: application/x-shockwave-flash
        title: Adobe Flex 3 Application
        description: http://www.adobe.com/products/flex
        publisher: unknown
        creator: unknown
        language: EN
        date: Apr 23, 2010
INFO: MaxRecursionDepth: 1000, ScriptTimeoutSeconds: 60
INFO: SWF Info:
        ProductId: 3
        Edition: 6
        Version: 3.5.0.12683
        CompileTime: 1272016541111
NOT_IMPLEMENTED: Unsupported tag type 56
NOT_IMPLEMENTED: Unimplemented Tag 56
INFO: NET: Downloading to memory
INFO: zlib compressed SWF file: Version 10
INFO: FrameRate 31
INFO: Creating VM
INFO: Download complete http://games.m2p.com/backgammon/Backgammon.swf?v=1.0.21
INFO: SWF Metadata:
        format: application/x-shockwave-flash
        title: Adobe Flex 3 Application
        description: http://www.adobe.com/products/flex
        publisher: unknown
        creator: unknown
        language: EN
        date: 03.01.2011
INFO: MaxRecursionDepth: 1000, ScriptTimeoutSeconds: 60
INFO: SWF Info:
        ProductId: 3
        Edition: 6
        Version: 3.4.0.10084
        CompileTime: 1294047251163
INFO: Download complete http://de.m2p.com/coupons.swf
INFO: Chosen config 0x105
INFO: Fragment shader compilation
INFO: Vertex shader compilation
NOT_IMPLEMENTED: Interface cinit (static)
NOT_IMPLEMENTED: Interface cinit (constructor)
INFO: NET: PLUGIN: DownloadManager::download 'http://games.m2p.com/backgammon/Backgammon.swf/lib/common.swf?v=0.0.50'
INFO: Start download for http://games.m2p.com/backgammon/Backgammon.swf/lib/common.swf?v=0.0.50
INFO: Newstream for http://games.m2p.com/backgammon/Backgammon.swf/lib/common.swf?v=0.0.50
INFO: NET: Downloading to memory
ERROR: Download error http://games.m2p.com/backgammon/Backgammon.swf/lib/common.swf?v=0.0.50
ERROR: Loader::execute(): Download of URL failed: http://games.m2p.com/backgammon/Backgammon.swf/lib/common.swf?v=0.0.50
INFO: PLUGIN: NPScriptObjectGW returned to browser