Unity chrashes if i click on "Find more * apps"

Binary package hint: unity-place-applications

I cant install apps i cant search apps i Unity with "Find more * apps" and i cant open the Software-Center after an update using Natty Alpha 3. Please fix this i do not want to use Windows apps since the only thing i could use to install is the package manager and i installed wine to use Windows Programms to "fix" this -.-

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: unity-place-applications 0.2.38-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
Uname: Linux 2.6.38-6-generic x86_64
Architecture: amd64
Date: Fri Mar 11 13:43:42 2011
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/unity-place-applications/unity-applications-daemon
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110302)
ProcCmdline: /usr/lib/unity-place-applications/unity-applications-daemon
ProcEnviron:
 SHELL=/bin/bash
 LANGUAGE=de:en
 LANG=de_DE.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7f7f11122c55 <_ZNK6Xapian12MSetIteratordeEv+21>: mov 0x8(%rax),%eax
 PC (0x7f7f11122c55) ok
 source "0x8(%rax)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: unity-place-applications
StacktraceTop:
 Xapian::MSetIterator::operator*() const () from /usr/lib/libxapian.so.22
 ?? ()
 ?? ()
 ?? () from /usr/lib/libzeitgeist-1.0.so.1
 ?? () from /usr/lib/libgio-2.0.so.0
Title: unity-applications-daemon crashed with SIGSEGV in Xapian::MSetIterator::operator*()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare