Attempt to redirect to invalid alias

[(M)]

The Admin log shows very often these Core action: "Attempt to redirect to invalid alias:".

Can someone tell me what causes this?

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Cms Version: 2.2.3.1
Installed Modules:
AceEditor2: 1.05
AdminSearch: 1.0.4
BWTwitter: 2.0.2
CGBlog: 1.14.4
CGExtensions: 1.57
CGFeedback: 2.0.4
CGJobMgr: 1.3.6
CGSimpleSmarty: 2.1.7
CGSmartImage: 1.22
CMSContentManager: 1.1.6
CMSMailer: 6.2.14
CmsJobManager: 0.1.1
ContentCache: 1.2
CustomContent: 1.10
DesignManager: 1.1.3
FileManager: 1.6.4
FilePicker: 1.0.1
FormBuilder: 0.8.1.6
FrontEndUsers: 2.7
GBFilePicker: 1.3.3
Gallery: 2.3.2
JQueryTools: 1.4.0.3
ListIt2: 1.4.1
ListIt2XDefs: 1.2
MenuManager: 1.50.3
MetaMax: 2.1.6
MicroTiny: 2.2.1
MleCMS: 2.0-beta1
ModuleManager: 2.1.2
NMS: 2.12.2
Navigator: 1.0.8
News: 2.51.3
Printing: 1.1.2
Search: 1.51.2
SiteMapMadeSimple: 1.2.8
Statistics: 1.2.1.2
ThemeManager: 1.1.8
TinyMCE: 3.2-beta3

[calguy1000]

somewhere you have specified a page-alias to redirect to (or an empty string) to a page that does not exist, or no longer exists.

Unfortunately, there isn't much we can tell you about where to find this without knowing how to reproduce it.

[Rolf]

Check if a content page is redirected to a not existing page id

[(M)]

I checkend every page but nothing wrong.

Still the Admin Log is overloading with "Attempt to redirect to invalid alias", so I search the web for it and came to this French link; http://www.cmsmadesimple.fr/forum/viewtopic.php?id=4865
"problème avec MLEcms" was my triger to look at that module because I have MleCMS 2.0-beta1 active (an inheritance of the CMSMS-1 series).

Disable the module and all the code in templates stops overloading the Admin Log.
Before I have the alpha2 version active and it works well on the front-end and nothing strange in the Admin Log.

Strange but I can get the alpha2 version actieve because of "Database Version Newer" message in Module Manager.

For now only the English version of the website is active.

[calguy1000]

Then this means it is probably an issue with MleCms and not the CMSMS core.
Perhaps submit a Bug Report for that project.