--- display.py.orig	2024-06-07 18:19:07.000000000 +0200
+++ display.py	2024-06-07 18:23:18.000000000 +0200
@@ -607,14 +607,14 @@
             return
         #elif NAV_ARRAY_TYPE[NAV_DICT['MARKER']] == 'prevnext':  # v.0.0.4
         if NAV_ARRAY_TYPE[NAV_DICT['MARKER']] == 'prevnext':  # v.0.0.4
-            SOCKETIO.emit('getQueue', on_push_queue)  # refresh variables of queue
+            SOCKETIO.emit('getQueue', callback=on_push_queue)  # refresh variables of queue
             VOLUMIO_DICT['MODE'] = 'prevnext'  # optimieren wg. global bzw. wird das überhaupt benötigt
             display_stuff(IMAGE_DICT['BG_DEFAULT'], [''.join([str(VOLUMIO_DICT['POSITION'] + 1), '/', str(LEN_QUEUE)]), OBJ_TRANS['DISPLAY']['PREVNEXT'], TITLE_QUEUE[VOLUMIO_DICT['POSITION']]], 1, 0, 'seek')
             return
         # only get called if no return before was executed
         #else:  # browsesource
         reset_variable('navigation')
-        SOCKETIO.emit('getBrowseSources', '', on_push_browsesources)
+        SOCKETIO.emit('getBrowseSources', callback=on_push_browsesources)
     #else:
     if mode not in ['player', 'navigation', 'menu']:
         reset_variable('player')