thank you for your answer. I started the server from the terminal. Please note that I already did so when I posted my initial message.
Here is the complete output when I also add -console.
myuser@myservername:/srv/emfstore$ /srv/emfstore/emfstore -configuration /srv/emfstore/.profile -EMFStoreHome=/srv/emfstore/home -data=/srv/emfstore/data
..,,:::,..
,:rsiS53H@@@@@@@@@@@@HS:
,;rsr;;;rS&#@@@#BA99hA#@@@@@@@Br
;sr;,. ,;iX35;, .;A@@@@@2.
,ii;. .:;;:. .. .S@@@@@r
:2s. ..,,. .,:;rssiiissrr;:,. :M@@@@2
:3i .... .,:;ri2X9GG&&&&&hh32ir;, ;#@@@@S
52 .,,:;;ri5Xh&AAAAAAAHHHHAAG3Sr::X@@@@@:
:h: ..,,:;;rri5X9G&AAAAAAAAAHBHBHA&3ir2@@@@@A
r5 ..,,::;;rsS2Xh&AAAAAAAAAHHHBBBBBHAh2X#@@@@@
rr ....,,:;;rsS2Xh&AAHHHHHHHHHBBBBMMMMMHAh&#@@@@@.
;; .. ...........,,::;;rs523GAHBBBBMMMMMMMMMMMM#####MHAH@@@@@@.
:; .,..............,,::;rri2Xh&ABM##MM###################MB#@@@@@@
.;.,:,..,,,,,,,,,,,,:;;rri5X9&AHM############@@#@@@@@@@@@@@##@@@@@@@BM###MBHAh35sr;,.
i;.::,.,,,,,,,,,,:::;rrs5XGHM#@@@@@@@@@@@@@@@@@@@@@@@####MMBAHMMM#@@@#BAA&h93XX2225Sir;.
;SXX,.,,,,,,,,,,,,,,,,,,,.... ...,,:;;;rrsiSS222X9G&AB#M32srrrr;;;;;;::;;;r.
SSH@M. ,,::::::::::::::;;rrrrrrsssrrrrrrsssiiiiiSS555222X33hhhG&AAAHM#Xr;::::::,,,,,,,,,,.
:XX#@@& ,,::::;;;;rrsi5XhH@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@M;,,,,,,,,,....,,. r
S9A@@@r .,,,,,::::;;rrsiSB##@@@@@@@@@@@@@@@@@@@@@@@@@@#####MMMMMM####M&Hr .,,.....,,,,, .hs
&hH@@@ .,.,. ..,,..... .; EMFStore ;rrsiS52X9&AA9252hi ....,,,,,,. .i@S
BGH@@# .,,.:i, ,::;;;;GBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHHAGXSiiS535..,,,,,,,. ,S@H.
.#AB@@# .., 5@@Hs:,,;siG@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#A922X222XhX..,,,,...;h@A.
.@AB@@@. ... &@@@@@M2;,.5B&&AAHHHHHBBBBMMMMMMMBMMBBBBBHHHA&XSsrrsiSSS55232..,. .:X##i
#HB@@@3 .. #@@@@@@@@#X92r;:,,.. ..,:::::::;rrsiiiiiS5Xi .;X#@3,
.i#@AB#@@@i ,@@###@@@@@@@@@@#MHHAAAAHHBBBBM#####Ah2isrrrrrsiiiSSSSSSSSii2s;h##X,
.2@@@@@HB#@@@@Brs@@#######@#@@@@@@@@@@@@@@@@@@@@@#BGX5iiiS52222X3X9999X22529H@@Gs.
i@@@@@@@@#B#@@@@@@@@#########M@@@@@@@@@@@@MG&hXSr;;:::;;rrrrrrrrrrrrrrrrs2&#@@@@.
.H@@@@@@@@@@@####@@@@@###########@@####MA35sr;::,,,,,::::;;;;;;;;;:::::rih#@@@@@@@A
,@@@@@@@@###@@@@##@#############BB#@@@3r:,.,,,,,:::::;;rrrrrsrrr;;;;rS9M@@@@@@@@@@@@
H@@@@@@############MMBBHAAAG93X5Ssrr5A@@@#3r,..,::;;;;;;rr;;;;;rs2&#@@@@@@@@@@@@@@@@:
,@@@@@#########MMMBBAAA&Gh3X25Sisrr;;:,.,;G@@@@@Gs;,,:;;;;::;s2A#@@@@@@@@@@@@@@@@MBH@X
@@@@#######MMBBHHAA&G99X255Sisrr;;;;:::,,. .;9@@@@@@hs:,,:#@@@@@@@@@@@@@@@@@#H&G9G&@H
A@@###MMMBHHAAAGh93X255isrrr;;;;;:::::::,,. :h@@@@@@@9;s@@@@@@@@@@@@#MAX252XhGA@H
@@#BHAAA&Gh93X25Siisrr;;:::,,,,,,,,::;rs53AM#@@@@@@@@@@@@#B@@@@@@@#HGX5552X9h&AB@3
.M@@@#H&92Sisrr;;;::::::::;rsi2hAM@@@@@@@@@@@@@@@@@@@@@@@@@@@MBA&93XX39hG&AAAH#@r
:SA@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@#@@@@@@@@BAAAAAAHAHHHHBB#@M
...,,.. 2@@@@@@@@@@@@@@@@@@@@@@@@@@@@#######@@###MM#MMM###@@@r
i@@@@@@@@@@###MBHM#######@@@@#@#############@@@@@S
,#@@@@@####MMM##@#@@@@@@@@@@@@@@@@@@@@@@@@@@@i
X@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@H:
.X@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@H;
;3@@@@@@@@@@@@@@@@@@@@@@@@Ar
,rXAM@@@@@@@@#AGi:
*----------*
| EmfStore |
*----------*
No location provider or error while instantiating location provider, switching to default location!
Using default path for EMFStore home:/srv/emfstore_x64/home/profiles/default/
Property file read. (/srv/emfstore_x64/home/profiles/default/./conf/es.properties)
Using RessourceStorage "org.eclipse.emf.emfstore.server.storage.XMLStorage".
Validating serverspace ...
Validation complete.
Creating initial server space...
History cache has been initialized.
added superuser super
Couldn't load password file from path: /srv/emfstore_x64/home/profiles/default/./conf/user.properties
Started XML RPC Webserver on port: 8080
(Emfstore:4481): GLib-GObject-WARNING **: invalid (NULL) pointer instance
(Emfstore:4481): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
(Emfstore:4481): Gtk-CRITICAL **: IA__gtk_settings_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(Emfstore:4481): GLib-GObject-CRITICAL **: g_object_get: assertion `G_IS_OBJECT (object)' failed
(Emfstore:4481): GLib-GObject-WARNING **: value "TRUE" of type `gboolean' is invalid or out of range for property `visible' of type `gboolean'
(Emfstore:4481): Gtk-CRITICAL **: IA__gtk_settings_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(Emfstore:4481): GLib-GObject-CRITICAL **: g_object_get: assertion `G_IS_OBJECT (object)' failed
(Emfstore:4481): Gtk-WARNING **: Screen for GtkWindow not set; you must always set
(Emfstore:4481): Gdk-CRITICAL **: IA__gdk_pango_context_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(Emfstore:4481): Pango-CRITICAL **: pango_context_set_font_description: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_context_set_base_dir: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_context_set_language: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_new: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_text: assertion `layout != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_attributes: assertion `layout != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_alignment: assertion `layout != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_ellipsize: assertion `PANGO_IS_LAYOUT (layout)' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_single_paragraph_mode: assertion `PANGO_IS_LAYOUT (layout)' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_width: assertion `layout != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_get_extents: assertion `layout != NULL' failed
(Emfstore:4481): Gtk-CRITICAL **: IA__gtk_icon_theme_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(Emfstore:4481): Gtk-CRITICAL **: IA__gtk_settings_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(Emfstore:4481): Gtk-CRITICAL **: IA__gtk_icon_size_lookup_for_settings: assertion `GTK_IS_SETTINGS (settings)' failed
(Emfstore:4481): Gtk-WARNING **: Invalid icon size 6
(Emfstore:4481): Gtk-CRITICAL **: IA__gtk_icon_theme_load_icon: assertion `GTK_IS_ICON_THEME (icon_theme)' failed
(Emfstore:4481): Gtk-WARNING **: Error loading theme icon 'dialog-error' for stock:
(Emfstore:4481): Gtk-CRITICAL **: IA__gtk_icon_size_lookup_for_settings: assertion `GTK_IS_SETTINGS (settings)' failed
(Emfstore:4481): Gtk-WARNING **: /build/buildd/gtk+2.0-2.24.10/gtk/gtkstyle.c:2358: invalid icon size '6'
(Emfstore:4481): Gtk-CRITICAL **: IA__gtk_style_render_icon: assertion `pixbuf != NULL' failed
(Emfstore:4481): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed
(Emfstore:4481): Gdk-CRITICAL **: IA__gdk_pango_context_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(Emfstore:4481): Pango-CRITICAL **: pango_context_set_font_description: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_context_set_base_dir: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_context_set_language: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_new: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_text: assertion `layout != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_alignment: assertion `layout != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_ellipsize: assertion `PANGO_IS_LAYOUT (layout)' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_single_paragraph_mode: assertion `PANGO_IS_LAYOUT (layout)' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_wrap: assertion `PANGO_IS_LAYOUT (layout)' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_width: assertion `layout != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_get_extents: assertion `layout != NULL' failed
(Emfstore:4481): Gdk-CRITICAL **: IA__gdk_pango_context_get_for_screen: assertion `GDK_IS_SCREEN (screen)' failed
(Emfstore:4481): Pango-CRITICAL **: pango_context_set_font_description: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_context_set_base_dir: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_context_set_language: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_new: assertion `context != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_text: assertion `layout != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_get_extents: assertion `layout != NULL' failed
(Emfstore:4481): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
(Emfstore:4481): Gdk-CRITICAL **: IA__gdk_screen_get_width: assertion `GDK_IS_SCREEN (screen)' failed
(Emfstore:4481): Gdk-CRITICAL **: IA__gdk_screen_get_width: assertion `GDK_IS_SCREEN (screen)' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_set_width: assertion `layout != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_get_extents: assertion `layout != NULL' failed
(Emfstore:4481): Pango-CRITICAL **: pango_layout_get_line_count: assertion `layout != NULL' failed
Gleitkomma-Ausnahme (Speicherabzug geschrieben)