--- /dev/null
+Thread 1 "claws-mail" received signal SIGSEGV, Segmentation fault.\r
+0x00007ffff79d5ced in gtk_box_pack (box=0x175d570, child=0x2, expand=0, fill=0, padding=0, pack_type=GTK_PACK_START) at ./gtk/gtkbox.c:740\r
+740 ./gtk/gtkbox.c: Datei oder Verzeichnis nicht gefunden.\r
+(gdb) bt full\r
+#0 0x00007ffff79d5ced in gtk_box_pack (box=0x175d570, child=0x2, expand=0, fill=0, padding=0, pack_type=GTK_PACK_START) at ./gtk/gtkbox.c:740\r
+ __inst = 0x2\r
+ __t = Python Exception <class 'gdb.error'> No type named TypeNode.: \r
+\r
+ __r = <optimized out>\r
+ child_info = <optimized out>\r
+ __func__ = "gtk_box_pack"\r
+#1 0x00007ffff79d5eb8 in IA__gtk_box_pack_start (box=<optimized out>, child=<optimized out>, expand=<optimized out>, fill=<optimized out>, padding=<optimized out>) at ./gtk/gtkbox.c:818\r
+#2 0x000000000045feaf in alertpanel_create (title=title@entry=0x7fffee32b56f "Mailbox entfernen", message=message@entry=0x10d10a0 "Really remove the mailbox `cweiske@cweiske.de' ?\n(The messages are NOT deleted from the disk)", button1_label=button1_label@entry=0x7fffeb4fcedd "gtk-cancel", button2_label=button2_label@entry=0x7fffee3382d7 "_Entfernen", button3_label=button3_label@entry=0x0, focus=focus@entry=ALERTFOCUS_FIRST, can_disable=0, custom_widget=0x2, alert_type=0) at alertpanel.c:335\r
+ font_desc = 0x106c040\r
+ image = <optimized out>\r
+ label = <optimized out>\r
+ hbox = <optimized out>\r
+ vbox = 0x175d570\r
+ disable_checkbtn = <optimized out>\r
+ confirm_area = 0xbf60f5429\r
+ button1 = 0x0\r
+ button2 = 0x0\r
+ button3 = 0x7fffffffd1d8\r
+ focusbutton = <optimized out>\r
+ label2 = <optimized out>\r
+ label3 = <optimized out>\r
+ tmp = <optimized out>\r
+ title_full = 0x97db30 "\360\234", <incomplete sequence \333>\r
+#3 0x0000000000460596 in alertpanel_full (title=0x7fffee32b56f "Mailbox entfernen", message=0x10d10a0 "Really remove the mailbox `cweiske@cweiske.de' ?\n(The messages are NOT deleted from the disk)", button1_label=0x7fffeb4fcedd "gtk-cancel", button2_label=0x7fffee3382d7 "_Entfernen", button3_label=0x0, focus=ALERTFOCUS_FIRST, can_disable=0, widget=0x2, alert_type=ALERT_NOTICE) at alertpanel.c:101\r
+#4 0x00007fffeb4fa0a4 in remove_mailbox_cb () at /usr/lib/x86_64-linux-gnu/claws-mail/plugins/maildir.so\r