I closed the App Store, killed the storeagent process, restarted the App Store, and tried to install a new app.
Here's the lines:
3/19/14 8:06:50.000 PM kernel[0]: nspace-handler-update: did not find token 19273
3/19/14 8:06:50.401 PM com.apple.mtmd[45]: handler timeout reset failed. (status=-1/errno=2/token=19273/fd=4)
3/19/14 8:07:00.000 PM kernel[0]: nspace-handler-update: did not find token 19273
3/19/14 8:07:00.398 PM com.apple.mtmd[45]: handler timeout reset failed. (status=-1/errno=2/token=19273/fd=4)
3/19/14 8:07:04.800 PM esets_daemon[175]: summ[00af0500]: vdb=17520, agent=fac, name="/private/var/folders/sx/3gd5h4s90sv7zr1cthlr66zc0000gn/C/com.apple.Launch Services-044501.csstore~", virus="", action="", info="Event occurred on a newly created file.", avstatus="not scanned", hop="accepted"
3/19/14 8:07:05.118 PM esets_daemon[175]: summ[00af0900]: vdb=17520, agent=fac, name="/Users/-/Library/Cookies/com.apple.appstore.cookies_tmp_19070_0.dat", virus="", action="", info="Event occurred on a newly created file.", avstatus="not scanned", hop="accepted"
3/19/14 8:07:07.738 PM esets_daemon[175]: summ[00af0500]: vdb=17520, agent=fac, name="/Users/-/Library/Cookies/com.apple.appstore.cookies_tmp_19070_0.dat", virus="", action="", info="Event occurred on a newly created file.", avstatus="not scanned", hop="accepted"
3/19/14 8:07:08.197 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:08.942 PM com.apple.WebKit.WebContent[19076]: NSScanner: nil string argument
3/19/14 8:07:08.942 PM com.apple.WebKit.WebContent[19076]: NSScanner: nil string argument
3/19/14 8:07:09.131 PM esets_daemon[175]: summ[00af0500]: vdb=17520, agent=fac, name="/Users/-/Library/Cookies/com.apple.appstore.cookies_tmp_19070_0.dat", virus="", action="", info="Event occurred on a newly created file.", avstatus="not scanned", hop="accepted"
3/19/14 8:07:10.002 PM esets_daemon[175]: summ[00af0500]: vdb=17520, agent=fac, name="/Users/-/Library/Cookies/com.apple.appstore.cookies_tmp_19070_0.dat", virus="", action="", info="Event occurred on a newly created file.", avstatus="not scanned", hop="accepted"
3/19/14 8:07:10.000 PM kernel[0]: nspace-handler-update: did not find token 19273
3/19/14 8:07:10.396 PM com.apple.mtmd[45]: handler timeout reset failed. (status=-1/errno=2/token=19273/fd=4)
3/19/14 8:07:10.459 PM esets_daemon[175]: summ[00af0800]: vdb=17520, agent=fac, name="/Users/-/Library/Cookies/com.apple.appstore.cookies_tmp_19070_0.dat", virus="", action="", info="Event occurred on a newly created file.", avstatus="not scanned", hop="accepted"
3/19/14 8:07:11.474 PM mds[46]: (Error) DiskStore: Unable to create/find index location 4A25C812-11EA-4608-977D-7B26C1E0916C 0
3/19/14 8:07:11.483 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:11.484 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:11.484 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:11.484 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:11.484 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:11.484 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:11.484 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:11.484 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:11.484 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:20.000 PM kernel[0]: nspace-handler-update: did not find token 19273
3/19/14 8:07:20.394 PM com.apple.mtmd[45]: handler timeout reset failed. (status=-1/errno=2/token=19273/fd=4)
3/19/14 8:07:30.000 PM kernel[0]: nspace-handler-update: did not find token 19273
3/19/14 8:07:30.391 PM com.apple.mtmd[45]: handler timeout reset failed. (status=-1/errno=2/token=19273/fd=4)
3/19/14 8:07:34.849 PM esets_daemon[175]: summ[00af0900]: vdb=17520, agent=fac, name="/private/var/folders/zz/zyxvpxvq6csfxvn_n00000b400002s/C/com.apple.mdwork er.bundle/mds/mdsObject.db_", virus="", action="", info="Event occurred on a newly created file.", avstatus="not scanned", hop="accepted"
3/19/14 8:07:40.000 PM kernel[0]: nspace-handler-update: did not find token 19273
3/19/14 8:07:40.389 PM com.apple.mtmd[45]: handler timeout reset failed. (status=-1/errno=2/token=19273/fd=4)
3/19/14 8:07:41.465 PM mds[46]: (Error) DiskStore: Unable to create/find index location 4A25C812-11EA-4608-977D-7B26C1E0916C 0
3/19/14 8:07:41.474 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:41.474 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:41.474 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:41.474 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:41.474 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:41.474 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:41.475 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:41.475 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:41.475 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:45.630 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:45.630 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:45.649 PM mds[46]: (Warning) Server: No stores registered for metascope "kMDQueryScopeComputer"
3/19/14 8:07:50.000 PM kernel[0]: nspace-handler-update: did not find token 19273
3/19/14 8:07:50.386 PM com.apple.mtmd[45]: handler timeout reset failed. (status=-1/errno=2/token=19273/fd=4)