App crashes when try to use camera

I'm on r243 devel, mako.

When I press the button to open camera, the app crashes. This is the log:

libust[19048/19052]: Error: Error opening shm /lttng-ust-wait-5-32011 (in get_wait_shm() at lttng-ust-comm.c:886)
libust[19048/19052]: Error: Error opening shm /lttng-ust-wait-5-32011 (in get_wait_shm() at lttng-ust-comm.c:886)
libust[19048/19051]: Error: Error opening shm /lttng-ust-wait-5 (in get_wait_shm() at lttng-ust-comm.c:886)
libust[19048/19051]: Error: Error opening shm /lttng-ust-wait-5 (in get_wait_shm() at lttng-ust-comm.c:886)
loading settings file: "/home/phablet/.config/com.ubuntu.developer.mzanetti.ubuntu-authenticator/ubuntu-authenticator.conf"
found group "{ebd292b5-b316-49c9-841a-11fcf0cbcabc}" "{ebd292b5-b316-49c9-841a-11fcf0cbcabc}"
setting type 1
No secret set. Cannot generate otp.
Time step is 0. Cannot generate totp
generating for account *****************
Generating secret **********************************
qml: duration: *****************
qml: duration: *****************
qml: duration: *****************
qml: duration: *****************
UbuntuWindow - regular geometry
qml: duration: *****************
UbuntuWindow::handleSurfaceFocusChange(focused=true)
UbuntuWindow::handleSurfaceResize(width=768, height=1226)
Initializing AalServicePlugin
Creating a new static Service instance
Failed to start a new media-hub player session: org.freedesktop.DBus.Error.AccessDenied: An AppArmor policy prevents this sender from sending this message to this recipient, 0 matched rules; type="method_call", sender=":1.326" (uid=32011 pid=19048 comm="./ubuntu-authenticator ") interface="core.ubuntu.media.Service" member="CreateSession" error name="(unset)" destination="core.ubuntu.media.Service" (uid=32011 pid=2125 comm="media-hub-server ")
Failed to create a new media player backend. Video playback will not function.

virtual int AalMediaPlayerControl::volume() const

Cannot get volume without a valid media-hub player session
virtual QMediaPlayer::State AalMediaPlayerControl::state() const

virtual QMediaPlayer::MediaStatus AalMediaPlayerControl::mediaStatus() const

virtual QMediaPlayer::MediaStatus AalMediaPlayerControl::mediaStatus() const

virtual void AalMediaPlayerControl::stop()

Cannot stop playback without a valid media-hub player session
virtual void AalMediaPlayerControl::setMedia(const QMediaContent&, QIODevice*)

virtual QMediaPlayer::MediaStatus AalMediaPlayerControl::mediaStatus() const

Cannot open uri without a valid media-hub player session
virtual void AalMediaPlayerControl::setAudioRole(QMediaPlayer::AudioRole)
void AalMediaPlayerService::setAudioRole(QMediaPlayer::AudioRole)