ASG 7.390 - http proxy keeps crashing while downloading

Question

It downloads this file (vuescan) and the bar stops at 99%, or 100%, or at "scanning". The http proxy crashes and restarts.

2009:02:11-16:49:45 astaro httpproxy[26619]: id="0001" severity="info" sys="SecureWeb" sub="http" name="http access" action="pass" method="GET" srcip="[**]" user="" statuscode="302" cached="0" profile="REF_DefaultHTTPProfile (Default Proxy)" filteraction="REF_DefaultHTTPCFFAction (Default content filter action)" size="321" time="685 ms" request="0x80ee1d8" url="http://dl.filekicker.com/send/file/219238-2601/vuesca85.exe" exceptions="" error="" category="177" categoryname="Content Server" content-type="text/html"
2009:02:11-16:50:30 astaro httpproxy[26703]: Integrated HTTP-Proxy (c) 2007-2008 Astaro AG
2009:02:11-16:50:30 astaro httpproxy[26703]: [     (nil)] main (httpproxy.c:173) reading configuration
2009:02:11-16:50:30 astaro httpproxy[26703]: [     (nil)] main (httpproxy.c:183) reading profiles
2009:02:11-16:50:30 astaro httpproxy[26703]: [     (nil)] disk_cache_zap (diskcache.c:404) creating cache
2009:02:11-16:50:31 astaro httpproxy[26703]: [     (nil)] sc_check_servers (scr_scanner.c:722) server 'cffs01.astaro.com' access time: 438ms
2009:02:11-16:50:32 astaro httpproxy[26703]: [     (nil)] sc_check_servers (scr_scanner.c:722) server 'cffs02.astaro.com' access time: 128ms
2009:02:11-16:50:32 astaro httpproxy[26703]: [     (nil)] sc_check_servers (scr_scanner.c:722) server 'cffs03.astaro.com' access time: 324ms
2009:02:11-16:50:36 astaro httpproxy[26703]: [     (nil)] main (httpproxy.c:206) finished startup
2009:02:11-16:50:36 astaro httpproxy[26703]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="POST" srcip="[**]" user="" statuscode="404" cached="0" profile="REF_DefaultHTTPProfile (Default Proxy)" filteraction=" ()" size="2190" time="2 ms" request="0x80b1308" url="http://passthrough.fw-notify.net/status/929879" exceptions="" error="download not found"
2009:02:11-16:50:36 astaro httpproxy[26703]: [     (nil)] sc_check_servers (scr_scanner.c:722) server 'cffs06.astaro.com' access time: 437ms
2009:02:11-16:50:37 astaro httpproxy[26703]: [     (nil)] sc_check_servers (scr_scanner.c:722) server 'cffs07.astaro.com' access time: 374ms
2009:02:11-16:50:37 astaro httpproxy[26703]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="POST" srcip="[**]" user="" statuscode="404" cached="0" profile="REF_DefaultHTTPProfile (Default Proxy)" filteraction=" ()" size="2190" time="467 ms" request="0x80b1308" url="http://passthrough.fw-notify.net/status/929879" exceptions="" error="download not found"
2009:02:11-16:50:38 astaro httpproxy[26703]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="POST" srcip="[**]" user="" statuscode="404" cached="0" profile="REF_DefaultHTTPProfile (Default Proxy)" filteraction=" ()" size="2190" time="998 ms" request="0x80b1308" url="http://passthrough.fw-notify.net/status/929879" exceptions="" error="download not found"
2009:02:11-16:50:39 astaro httpproxy[26703]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="POST" srcip="[**]" user="" statuscode="404" cached="0" profile="REF_DefaultHTTPProfile (Default Proxy)" filteraction=" ()" size="2190" time="990 ms" request="0x80b1308" url="http://passthrough.fw-notify.net/status/929879" exceptions="" error="download not found"
2009:02:11-16:50:39 astaro httpproxy[26703]: [     (nil)] sc_check_servers (scr_scanner.c:722) server 'cffs09.astaro.com' access time: 269ms
2009:02:11-16:50:40 astaro httpproxy[26703]: [     (nil)] sc_check_servers (scr_scanner.c:722) server 'cffs10.astaro.com' access time: 727ms
2009:02:11-16:50:40 astaro httpproxy[26703]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="POST" srcip="[**]" user="" statuscode="404" cached="0" profile="REF_DefaultHTTPProfile (Default Proxy)" filteraction=" ()" size="2190" time="999 ms" request="0x80b1308" url="http://passthrough.fw-notify.net/status/929879" exceptions="" error="download not found"
2009:02:11-16:50:41 astaro httpproxy[26703]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="POST" srcip="[**]" user="" statuscode="404" cached="0" profile="REF_DefaultHTTPProfile (Default Proxy)" filteraction=" ()" size="2190" time="999 ms" request="0x80b1308" url="http://passthrough.fw-notify.net/status/929879" exceptions="" error="download not found"
2009:02:11-16:50:42 astaro httpproxy[26703]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="POST" srcip="[**]" user="" statuscode="404" cached="0" profile="REF_DefaultHTTPProfile (Default Proxy)" filteraction=" ()" size="2190" time="998 ms" request="0x80b1308" url="http://passthrough.fw-notify.net/status/929879" exceptions="" error="download not found"
2009:02:11-16:50:43 astaro httpproxy[26703]: [     (nil)] epoll_loop (epoll.c:658) reloading config
2009:02:11-16:50:43 astaro httpproxy[26703]: [     (nil)] epoll_loop (epoll.c:664) done
2009:02:11-16:50:43 astaro httpproxy[26703]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="POST" srcip="[**]" user="" statuscode="404" cached="0" profile="REF_DefaultHTTPProfile (Default Proxy)" filteraction=" ()" size="2190" time="1426 ms" request="0x80b1308" url="http://passthrough.fw-notify.net/status/929879" exceptions="" error="download not found"
2009:02:11-16:50:44 astaro httpproxy[26703]: id="0002" severity="info" sys="SecureWeb" sub="http" name="web request blocked" action="block" method="POST" srcip="[**]" user="" statuscode="404" cached="0" profile="REF_DefaultHTTPProfile (Default Proxy)" filteraction=" ()" size="2190" time="571 ms" request="0x80b1308" url="http://passthrough.fw-notify.net/status/929879" exceptions="" error="download not found"