MeGUI mag mein Avisinth nicht mehr?

[Error] Log
-[Information] Versions
--[Information] MeGUI: 2859 x86
--[Information] Update Check: development update server
--[Information] System Information
---[Information] Operating System: Windows 7 Professional x64 SP1 (6.1.65536.7601)
---[Information] .NET Framework: 4.0 (4.0.0.0)
---[Information] .NET Framework: 4.5.x (4.5.51209)
---[Information] Redistributables
----[Information] Microsoft Visual C++ 2008 x64: 9.0.21022
----[Information] Microsoft Visual C++ 2008 x86: 9.0.30729
----[Information] Microsoft Visual C++ 2010 x64: 10.0.40219
----[Information] Microsoft Visual C++ 2010 x86: 10.0.40219
----[Information] Microsoft Visual C++ 2012 x64: 11.0.61030
----[Information] Microsoft Visual C++ 2012 x86: 11.0.61030
----[Information] Microsoft Visual C++ 2013 x64: 12.0.30501
----[Information] Microsoft Visual C++ 2013 x86: 12.0.30501
----[Information] Microsoft Visual C++ 2015 x64: 14.0.24215
----[Information] Microsoft Visual C++ 2015 x86: 14.0.24215
---[Information] DPI: 100% (96/96)
---[Information] Monitor 1
----[Information] Resolution: 1920x1080
----[Information] Primary Screen: True
--[Information] Component Information
---[Information] Haali Media Splitter: 1.13.138.14 (14-09-2015)
---[Information] Haali DSS2: (14-09-2015)
---[Information] ICSharpCode.SharpZipLib: 0.85.5.452 (07-08-2008)
---[Information] MediaInfo: 18.05.0.0 (08-05-2018)
---[Information] SevenZipSharp: 0.64.3890.29348 (02-01-2011)
---[Information] 7z: 9.20 (18-11-2010)
--[Information] AviSynth Information
---[Information] AviSynth Wrapper
----[Information] Version: 1.0.2847.0
----[Information] Date: 06-05-2018
----[Information] Interface: 3
---[Information] AviSynth
----[Information] File Version: 2.6.0.4
----[Information] Date: 28-09-2013
----[Information] Name: Avisynth 2.6
----[Information] Version: AviSynth 2.60, build:Sep 28 2013 [15:09:12]
----[Information] AviSynth+: false
----[Information] MT: true
----[Information] Status: active
---[Information] AviSynth portable
----[Information] File Version: 0.1
----[Information] Date: 28-03-2018
----[Information] Name: AviSynth+ 0.1 (r2664, MT, i386)
----[Information] Status: inactive
-[Information] Update detection
--[Information] [01.06.2018 18:05:18] Using cached update config and server: http://megui.tmebi.de/test/
--[Information] [01.06.2018 18:05:18] No package requires an update
--[Information] [01.06.2018 18:05:19] redist files copied: 2017_x86
--[Information] [01.06.2018 18:05:52] There is 1 package which can be updated: FFMS
--[Information] [01.06.2018 18:05:52] updating package FFMS as it is missing or outdated
--[Information] [01.06.2018 18:11:07] Marked file as obsolete: ffms2-2.22_rc2.7z
-[Information] FileIndexer
--[Information] [01.06.2018 18:05:43] MediaInfo
---[Information] [01.06.2018 18:05:43] File: E:\Videos\okami_26.avi
---[Information] General
----[Information] Format: AVI
----[Information] FormatString: AVI
----[Information] FileSize: 42821180484
----[Information] PlayTime: 00:28:24.000
---[Information] Video
----[Information] ID: 0
----[Information] StreamOrder:
----[Information] Width: 1920
----[Information] Height: 1080
----[Information] FrameCount: 51120
----[Information] FrameRate: 30.000
----[Information] FrameRateOriginal:
----[Information] FrameRateMode:
----[Information] ScanType:
----[Information] Codec: MAGY
----[Information] CodecString: MAGY
----[Information] Bits Depth:
----[Information] Format: MAGY
----[Information] AspectRatio: 1.778
----[Information] AspectRatioString: 16:9
----[Information] Delay: 0
----[Information] Title:
----[Information] Language:
----[Information] LanguageString:
----[Information] Default:
----[Information] DefaultString:
----[Information] Forced:
----[Information] ForcedString:
---[Information] Audio
----[Information] ID: 1
----[Information] StreamOrder: 1
----[Information] Format: PCM
----[Information] FormatProfile:
----[Information] FormatSettingsSBR:
----[Information] FormatSettingsPS:
----[Information] Muxing Mode:
----[Information] SamplingRate: 48000
----[Information] SamplingRateString: 48.0 kHz
----[Information] Channels: 2
----[Information] ChannelsString: 2 channels
----[Information] ChannelPositionsString2:
----[Information] BitRateMode: CBR
----[Information] Delay: 0
----[Information] Title:
----[Information] Language:
----[Information] LanguageString:
----[Information] Default:
----[Information] DefaultString:
----[Information] Forced:
----[Information] ForcedString:
----[Information] [01.06.2018 18:05:44] The language information is not available for this track. The default MeGUI language has been selected.
---[Information] Audio
----[Information] ID: 2
----[Information] StreamOrder: 2
----[Information] Format: PCM
----[Information] FormatProfile:
----[Information] FormatSettingsSBR:
----[Information] FormatSettingsPS:
----[Information] Muxing Mode:
----[Information] SamplingRate: 48000
----[Information] SamplingRateString: 48.0 kHz
----[Information] Channels: 2
----[Information] ChannelsString: 2 channels
----[Information] ChannelPositionsString2:
----[Information] BitRateMode: CBR
----[Information] Delay: 0
----[Information] Title:
----[Information] Language:
----[Information] LanguageString:
----[Information] Default:
----[Information] DefaultString:
----[Information] Forced:
----[Information] ForcedString:
----[Information] [01.06.2018 18:05:44] The language information is not available for this track. The default MeGUI language has been selected.
-[Information] Log for job2 (idx, okami_26.avi -> okami_26.avi.ffindex)
--[Information] [01.06.2018 18:05:52] Started handling job
--[Information] [01.06.2018 18:06:06] Preprocessing
--[Information] [01.06.2018 18:06:06] Job command line: "D:\Benutzer\MeGUI\tools\ffms\ffmsindex.exe" -t -1 -f "E:\Videos\okami_26.avi" "E:\Videos\okami_26.avi.ffindex"
--[Information] [01.06.2018 18:06:06] Process started
--[Information] [01.06.2018 18:06:06] Standard output stream
---[Information] [01.06.2018 18:10:37] Writing index... done.
--[Information] [01.06.2018 18:06:06] Standard error stream
--[Information] [01.06.2018 18:10:38] MediaInfo
---[Information] [01.06.2018 18:10:38] File: E:\Videos\okami_26.avi.ffindex
---[Information] General
----[Information] Format:
----[Information] FormatString:
----[Information] FileSize: 207269
----[Information] PlayTime:
--[Information] [01.06.2018 18:10:38] Postprocessing
---[Information] [01.06.2018 18:10:39] Deleting intermediate files
--[Information] [01.06.2018 18:10:39] Job completed
-[Error] Log for job3 (video, okami_26.avi.avs -> okami_26.avi.mkv)
--[Information] [01.06.2018 18:10:53] Started handling job
--[Information] [01.06.2018 18:10:53] Preprocessing
--[Information] [01.06.2018 18:10:53] AviSynth input script
---[NoImage] LoadPlugin("D:\Benutzer\MeGUI\tools\ffms\ffms2.dll")
---[NoImage] FFVideoSource("E:\Videos\okami_26.avi", fpsnum=30, fpsden=1, threads=1)
---[NoImage] #deinterlace
---[NoImage] #crop
---[NoImage] #resize
---[NoImage] #denoise
--[Information] [01.06.2018 18:10:53] resolution: 1920x1080
--[Information] [01.06.2018 18:10:53] frame rate: 30/1
--[Information] [01.06.2018 18:10:53] frames: 51120
--[Information] [01.06.2018 18:10:53] length: 00:28:24.000
--[Information] [01.06.2018 18:10:53] aspect ratio: 16:9 (1.778)
--[Information] [01.06.2018 18:10:53] color space: I420
--[Information] [01.06.2018 18:10:53] Job command line: "cmd.exe" /c ""D:\Benutzer\MeGUI\tools\ffmpeg\ffmpeg.exe" -loglevel level+warning -i "E:\Videos\okami_26.avi.avs" -strict -1 -f yuv4mpegpipe - | "D:\Benutzer\MeGUI\tools\x264\x264.exe" --crf 21.0 --keyint 300 --sar 1:1 --frames 51120 --output "E:\Videos\okami_26.avi.mkv" --stdin y4m -"
--[Information] [01.06.2018 18:10:53] Process started
--[Information] [01.06.2018 18:10:53] Standard output stream
--[Error] [01.06.2018 18:10:53] Standard error stream
---[Information] [01.06.2018 18:10:55] [avisynth @ 002cf800] [error] AviSynth version is too old. Please upgrade to either AviSynth 2.6 >= RC1 or AviSynth+ >= r1718.
---[Information] [01.06.2018 18:10:55] [error] E:\Videos\okami_26.avi.avs: Unknown error occurred
---[Error] [01.06.2018 18:10:55] y4m [error]: bad sequence header magic
---[Error] [01.06.2018 18:10:55] x264 [error]: could not open input file `-'
--[Error] [01.06.2018 18:10:55] Process exits with error: 0xFFFFFFFF (-1)
--[Information] [01.06.2018 18:10:55] Job completed