Index: umc/python/join/__init__.py
===================================================================
--- umc/python/join/__init__.py	(Revision 44789)
+++ umc/python/join/__init__.py	(Arbeitskopie)
@@ -285,8 +285,12 @@
 			match = RE_NOT_CONFIGURED.match(line)
 			if match:
 				name = match.groups()[0]
-				files[name]['configured'] = False
-				files[name]['status'] = '0:%s' % (files[name]['prio'])
+				if name in files:
+					files[name]['configured'] = False
+					files[name]['status'] = '0:%s' % (files[name]['prio'])
+				else:
+					# The joinscripts does not exists in the filesystem or has a invalid name
+					MODULE.error('not existing join script or join script with invalid name meantioned in status file: %r' % (name))
 
 		return files.values()