déjà-dup segmentation fault when restoring files via --restore-missing [DIRECTORY]

lsb_release -d
Description: Fedora release 27 (Twenty Seven)
rpm -q deja-dup duplicity
deja-dup-36.3-1.fc27.x86_64
duplicity-0.7.14-1.fc27.x86_64

Restoring a specific file (whose complete path and filename I have to know) in the terminal works. Using "Restore Missing Files..." in Nautilus, déjà-dup however does not open automatically.

Likewise, trying to restore missing files from a specific directory (whose names I could possibly have forgotten) via
deja-dup --restore-missing [DIRECTORY] gives a segmentation fault:

** (org.gnome.DejaDup:11733): CRITICAL **: deja_dup_config_location_get_backend: assertion 'self != NULL' failed

** (org.gnome.DejaDup:11733): CRITICAL **: deja_dup_operation_status_construct: assertion 'backend != NULL' failed

(org.gnome.DejaDup:11733): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(org.gnome.DejaDup:11733): GLib-GObject-CRITICAL **: g_signal_connect_object: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(org.gnome.DejaDup:11733): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(org.gnome.DejaDup:11733): GLib-GObject-CRITICAL **: g_signal_connect_object: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(org.gnome.DejaDup:11733): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(org.gnome.DejaDup:11733): GLib-GObject-CRITICAL **: g_signal_connect_object: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(org.gnome.DejaDup:11733): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(org.gnome.DejaDup:11733): GLib-GObject-CRITICAL **: g_signal_connect_object: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(org.gnome.DejaDup:11733): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(org.gnome.DejaDup:11733): GLib-GObject-CRITICAL **: g_signal_connect_object: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

** (org.gnome.DejaDup:11733): CRITICAL **: deja_dup_operation_get_backend: assertion 'self != NULL' failed

** (org.gnome.DejaDup:11733): CRITICAL **: deja_dup_backend_set_mount_op: assertion 'self != NULL' failed

** (org.gnome.DejaDup:11733): CRITICAL **: deja_dup_operation_get_backend: assertion 'self != NULL' failed

(org.gnome.DejaDup:11733): GLib-GObject-WARNING **: invalid (NULL) pointer instance

(org.gnome.DejaDup:11733): GLib-GObject-CRITICAL **: g_signal_connect_object: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed
Segmentation fault (core dumped)