Everytime I try to install it I get this error:
2017-02-12 23:13:40Infoinstcont[4948,11308]–
2017-02-12 23:13:40Infoinstcont[4948,11308]2017/02/12 23:13:40 START: Avast installer/updater
2017-02-12 23:13:40Infoinstup[4948,11308]Command: ‘“C:\Users\Nico\AppData\Local\Temp_av_iup.tm~a08404\instup.exe” /cookie:mmm_sft_dlp_000_119_a /edition:1 /ga_clientid:40a8f1cb-9733-4f55-871f-dc5ff3665ced /guid:bf067349-e0a8-442b-a18d-1a8b0258fce4 /prod:ais /sfx:lite /sfxstorage:C:\Users\Nico\AppData\Local\Temp_av_iup.tm~a08404’
2017-02-12 23:13:40Infoinstup[4948,11308]CPU: Intel(R) Core™ i5-6300HQ CPU @ 2.30GHz,4
2017-02-12 23:13:40Infoinstup[4948,11308]OS: Windows 10 (10.0.14393) x64
2017-02-12 23:13:40Infoinstup[4948,11308]Memory: 42% load. Phys:4194303/4194303K free, Page:4194303/4194303K free, Virt:4004844/4194176K free
2017-02-12 23:13:40Infoinstup[4948,11308]DISKs: C:\ - 103GB free / 227GB total
2017-02-12 23:13:40Infoinstup[4948,11308]DISKs: D:\ - 900GB free / 931GB total
2017-02-12 23:13:40Infoinstup[4948,11308]Running module version: instup.exe - ‘17.1.3394.0’
2017-02-12 23:13:40Infoinstup[4948,11308]Running module version: Instup.dll - ‘17.1.3394.0’
2017-02-12 23:13:40Infoinstupmutex[4948,11308]The ownership of the fallback mutex has been successfully taken.
2017-02-12 23:13:41Infoguiwizard[4948,11308]Running module version: HTMLayout.dll - ‘3.3.2.1’
2017-02-12 23:13:41Infoguiwizard[4948,11308]Loaded module version: C:\Users\Nico\AppData\Local\Temp_av_iup.tm~a08404\HTMLayout.dll - ‘3.3.2.1’
2017-02-12 23:13:41Infoguiwizard[4948,11308]Setup gui was successfully started.
2017-02-12 23:13:41Infoinstupcore[4948,11308]Sfx setup update has started.
2017-02-12 23:13:42Infoservers[4948,11308]Server definition(s) loaded for ‘C:\Users\Nico\AppData\Local\Temp_av_iup.tm~a08404\servers.def’: 29 (maintenance:0)
2017-02-12 23:13:42Infoservers[4948,11308]ChooseServer: selected server ‘Download j8087387 AVAST9 Server’ with current url ‘http://j8087387.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2017-02-12 23:13:43Infodldwrap[4948,11308]HttpGet: ‘servers.def.vpx’ was successfully downloaded (ip: 186.16.15.89, size: 2847 bytes).
2017-02-12 23:13:43Infodldwrap[4948,11308]HttpGet: ‘servers.def.vpx’ was successfully verified.
2017-02-12 23:13:43Infoservers[4948,11308]ChooseServer: selected server ‘Download s4705686 AVAST9 Server’ with current url ‘http://s4705686.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2017-02-12 23:13:43Infodldwrap[4948,11308]HttpGet: ‘prod-pgm.vpx’ was successfully downloaded (ip: 186.16.15.89, size: 446 bytes).
2017-02-12 23:13:43Infodldwrap[4948,11308]HttpGet: ‘prod-pgm.vpx’ was successfully verified.
2017-02-12 23:13:43Infopkgproduct[4948,11308]LoadPartInfo: program = prg_ais-110108ee returned 0x00000000
2017-02-12 23:13:43Infopkgproduct[4948,11308]LoadPartInfo: setup = setup_ais-110108ee returned 0x00000000
2017-02-12 23:13:43Infopkgproduct[4948,11308]LoadUatInfo: uat.vpx returned 0x00000000
2017-02-12 23:13:43Infopkgengine[4948,11308]LoadLatestProdAndParts: product file ‘prod-pgm.vpx’ was successfully loaded.
2017-02-12 23:13:44Infopkguat[4948,11308]UpdateLatestPartInfo: called, repo_id: ‘iavs9x’, part_id: program, installed_ver: ffffffff, latest_ver: 110108ee
2017-02-12 23:13:44Infopkgengine[4948,11308]LoadLatestProdAndParts: part file part-prg_ais-110108ee.vpx was successfully loaded.
2017-02-12 23:13:44Infopkguat[4948,11308]UpdateLatestPartInfo: called, repo_id: ‘iavs9x’, part_id: setup, installed_ver: ffffffff, latest_ver: 110108ee
2017-02-12 23:13:44Infopkgengine[4948,11308]LoadLatestProdAndParts: part file part-setup_ais-110108ee.vpx was successfully loaded.
2017-02-12 23:13:44Infoservers[4948,11308]ChooseServer: selected server ‘Download f6761140 AVAST9 Server’ with current url ‘http://f6761140.vpsnitro.u.avast.com/vpsnitro’ of type ‘URL_TYPE_DOWNLOAD_VPS’.
2017-02-12 23:13:45Infodldwrap[4948,11308]HttpGet: ‘prod-vps.vpx’ was successfully downloaded (ip: 186.16.15.80, size: 450 bytes).
2017-02-12 23:13:45Infodldwrap[4948,11308]HttpGet: ‘prod-vps.vpx’ was successfully verified.
2017-02-12 23:13:45Infopkgproduct[4948,11308]LoadPartInfo: iex = iex-8 returned 0x00000000
2017-02-12 23:13:45Infopkgproduct[4948,11308]LoadPartInfo: jrog2 = jrog2-1386 returned 0x00000000
2017-02-12 23:13:45Infopkgproduct[4948,11308]LoadPartInfo: vps = vps_win32-17021200 returned 0x00000000
2017-02-12 23:13:45Infopkgengine[4948,11308]LoadLatestProdAndParts: product file ‘prod-vps.vpx’ was successfully loaded.
2017-02-12 23:13:45Infoservers[4948,11308]ChooseServer: selected server ‘Download h0637628 AVAST9 Server’ with current url ‘http://h0637628.vpsnitro.u.avast.com/vpsnitro’ of type ‘URL_TYPE_DOWNLOAD_VPS’.
2017-02-12 23:13:46Infodldwrap[4948,11308]HttpGet: ‘part-iex-8.vpx’ was successfully downloaded (ip: 186.16.15.89, size: 225 bytes).
2017-02-12 23:13:46Infodldwrap[4948,11308]HttpGet: ‘part-iex-8.vpx’ was successfully verified.
2017-02-12 23:13:46Infopkgengine[4948,11308]LoadLatestProdAndParts: part file part-iex-8.vpx was successfully loaded.
2017-02-12 23:13:46Infoservers[4948,11308]ChooseServer: selected server ‘Download v6834318 AVAST9 Server’ with current url ‘http://v6834318.vpsnitro.u.avast.com/vpsnitro’ of type ‘URL_TYPE_DOWNLOAD_VPS’.
2017-02-12 23:13:47Infodldwrap[4948,11308]HttpGet: ‘part-jrog2-1386.vpx’ was successfully downloaded (ip: 186.16.15.89, size: 865 bytes).
2017-02-12 23:13:47Infodldwrap[4948,11308]HttpGet: ‘part-jrog2-1386.vpx’ was successfully verified.
2017-02-12 23:13:47Infopkgengine[4948,11308]LoadLatestProdAndParts: part file part-jrog2-1386.vpx was successfully loaded.
2017-02-12 23:13:47Infoservers[4948,11308]ChooseServer: selected server ‘Download v7630928 AVAST9 Server’ with current url ‘http://v7630928.vpsnitro.u.avast.com/vpsnitro’ of type ‘URL_TYPE_DOWNLOAD_VPS’.
2017-02-12 23:13:48Infodldwrap[4948,11308]HttpGet: ‘part-vps_win32-17021200.vpx’ was successfully downloaded (ip: 186.16.15.89, size: 4095 bytes).
2017-02-12 23:13:48Infodldwrap[4948,11308]HttpGet: ‘part-vps_win32-17021200.vpx’ was successfully verified.
2017-02-12 23:13:48Infopkgengine[4948,11308]LoadLatestProdAndParts: part file part-vps_win32-17021200.vpx was successfully loaded.
2017-02-12 23:13:48Infoservers[4948,11308]ChooseServer: selected server ‘Download z2461313 AVAST9 Server’ with current url ‘http://z2461313.iavs9x.u.avast.com/iavs9x’ of type ‘URL_TYPE_DOWNLOAD_PROGRAM’.
2017-02-12 23:13:48Noticepackageinfo[4948,11308]IsFullOkay: avbugreport_ais-8ee.vpx - not okay (doesn’t exist)
2017-02-12 23:13:48Infopackageinfo[4948,11308]SetFullAsMarked: package avbugreport_ais
2017-02-12 23:14:00Infodldwrap[4948,11308]HttpGet: ‘avbugreport_ais-8ee.vpx’ was successfully downloaded (ip: 189.6.45.17, size: 1061311 bytes).
2017-02-12 23:14:00Infodldwrap[4948,11308]HttpGet: ‘avbugreport_ais-8ee.vpx’ was successfully verified.
2017-02-12 23:14:00Noticepackageinfo[4948,11308]IsFullOkay: avdump_x64_ais-8ee.vpx - not okay (doesn’t exist)
2017-02-12 23:14:00Infopackageinfo[4948,11308]SetFullAsMarked: package avdump_x64_ais
2017-02-12 23:14:03Infodldwrap[4948,11308]HttpGet: ‘avdump_x64_ais-8ee.vpx’ was successfully downloaded (ip: 186.16.15.80, size: 278145 bytes).
2017-02-12 23:14:03Infodldwrap[4948,11308]HttpGet: ‘avdump_x64_ais-8ee.vpx’ was successfully verified.
2017-02-12 23:14:03Noticepackageinfo[4948,11308]IsFullOkay: avdump_x86_ais-8ee.vpx - not okay (doesn’t exist)
2017-02-12 23:14:03Infopackageinfo[4948,11308]SetFullAsMarked: package avdump_x86_ais
2017-02-12 23:14:07Infodldwrap[4948,11308]HttpGet: ‘avdump_x86_ais-8ee.vpx’ was successfully downloaded (ip: 189.6.45.16, size: 247294 bytes).
2017-02-12 23:14:07Infodldwrap[4948,11308]HttpGet: ‘avdump_x86_ais-8ee.vpx’ was successfully verified.
2017-02-12 23:14:07Infopackageinfo[4948,11308]IsFullOkay: instcont_ais-8ee.vpx - is okay (it exists and has valid signature)
2017-02-12 23:14:07Infopackageinfo[4948,11308]IsFullOkay: instup_ais-8ee.vpx - is okay (it exists and has valid signature)
2017-02-12 23:14:07Noticepackageinfo[4948,11308]IsFullOkay: offertool_ais-8ee.vpx - not okay (doesn’t exist)
2017-02-12 23:14:07Infopackageinfo[4948,11308]SetFullAsMarked: package offertool_ais
2017-02-12 23:14:19Infodldwrap[4948,11308]HttpGet: ‘offertool_ais-8ee.vpx’ was successfully downloaded (ip: 189.6.45.17, size: 1888621 bytes).
2017-02-12 23:14:19Infodldwrap[4948,11308]HttpGet: ‘offertool_ais-8ee.vpx’ was successfully verified.
2017-02-12 23:14:19Noticepackageinfo[4948,11308]IsFullOkay: selfdefense_x64_ais-8ee.vpx - not okay (doesn’t exist)
2017-02-12 23:14:19Infopackageinfo[4948,11308]SetFullAsMarked: package selfdefense_x64_ais
2017-02-12 23:14:22Infodldwrap[4948,11308]HttpGet: ‘selfdefense_x64_ais-8ee.vpx’ was successfully downloaded (ip: 189.6.45.16, size: 235109 bytes).
2017-02-12 23:14:22Errordldwrap[4948,11308]HttpGet: ‘selfdefense_x64_ais-8ee.vpx’ DSA verification has failed.
2017-02-12 23:14:22Errorpkgengine[4948,11308]UpdateVPXs: package selfdefense_x64_ais was not updated. Status: 40961 (0x0000A001) [Invalid signature]
2017-02-12 23:14:22Noticepackageinfo[4948,11308]IsFullOkay: selfdefense_x86_ais-8ee.vpx - not okay (doesn’t exist)
2017-02-12 23:14:22Infopackageinfo[4948,11308]SetFullAsMarked: package selfdefense_x86_ais
2017-02-12 23:14:25Infodldwrap[4948,11308]HttpGet: ‘selfdefense_x86_ais-8ee.vpx’ was successfully downloaded (ip: 189.6.45.17, size: 208542 bytes).
2017-02-12 23:14:25Errordldwrap[4948,11308]HttpGet: ‘selfdefense_x86_ais-8ee.vpx’ DSA verification has failed.
2017-02-12 23:14:25Errorpkgengine[4948,11308]UpdateVPXs: package selfdefense_x86_ais was not updated. Status: 40961 (0x0000A001) [Invalid signature]
2017-02-12 23:14:25Infopackageinfo[4948,11308]IsFullOkay: setgui_ais-8ee.vpx - is okay (it exists and has valid signature)
Please help me 