Error404 in admin backend after security patch This module's admin routes must be corrected manually

[johannesbo123]

Hello everybody,

After installing SUPEE-6788, v2-1.8.1.0 SUPEE-7405, SUPEE-8788v2, SUPEE-9652 on Magento Version 1.8.1.0, I get several Error 404 issues, when I click on my "Magiccart" (a magento Theme Menu). 

every submenu is causing the same error 404

The log file:

.../app/code/local/Magiccart/Blog/controllers/Adminhtml does not exist! This module's admin routes must be corrected manually.

  .../app/code/community/SLandsbek/SimpleOrderExport/controllers/Adminhtml does not exist! This module's admin routes must be corrected manually.

.../app/code/local/Wyomind/Notificationmanager/controllers/Adminhtml does not exist! This module's admin routes must be corrected manually.

I tried to insert the block types into system -> permissions -> blocks, 

but this didn't help.

Also I looked into the modules xml files, but it was already replaced with

<adminhtml>
   <args>
      <modules>
         <xxxx before="Mage_Adminhtml">xxxx_Adminhtml</xxxx>
      </modules>
    </args>
</adminhtml> 

I think there is a problem with the "adminhtml_" in the links. 

Because every link with "adminhtml_" seems not to work.

I get the same error on this links:

- .../index.php/filesystem/adminhtml_filesystem/...

- .../index.php/iwdall/adminhtml_support/...

- .../index.php/magicslider/adminhtml_magicslider/

- .../index.php/blog_admin/manage_blog/new/key/...

and so on...

What can be the problem and ow can I fix this?

Thank very much for your help!

Johannes