Version-Release number of selected component:
gnome-calendar-3.18.1-1.fc23

Additional info:
reporter:       libreport-2.6.3
backtrace_rating: 4
cmdline:        /usr/bin/gnome-calendar --gapplication-service
crash_function: g_hash_table_lookup_node
executable:     /usr/bin/gnome-calendar
global_pid:     6303
kernel:         4.2.3-300.fc23.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 g_hash_table_lookup_node at ghash.c:373
 #1 g_hash_table_lookup at ghash.c:1147
 #2 gcal_manager_source_enabled at gcal-manager.c:1408
 #3 make_row_from_source at gcal-window.c:926
 #4 add_source at gcal-window.c:874
 #5 ffi_call_unix64 at ../src/x86/unix64.S:76
 #6 ffi_call at ../src/x86/ffi64.c:525
 #7 g_cclosure_marshal_generic at gclosure.c:1487
 #12 on_client_connected at gcal-manager.c:373
 #13 g_simple_async_result_complete at gsimpleasyncresult.c:801