Blank system configuration screen in Magento admin panel

Question

We encountered a problem with our site.

On the system> configuration screen, only the menu, side menu and footer are displayed. When we click on the side menu option, the screen remains black and the corresponding information does not appear. See this link . This is what appears. When we click on the option of any side menu, the screen is blank.

This causes a serious problem because we cannot access the information for setting up the site.

Respectfully yours, Pavel

Answer 1

Sometimes it is forgotten that after installing a new module it may be necessary to recompile, that is, if you enabled compilation in System / Tools / Compilation. Before recompiling, the entire configuration page may be blank.

Answer 2

First clear the cache ( System> Cache Management ).

If this does not solve your problem and it is assumed that you have an intermediate instance for operation, you should deactivate all custom modules, adding each one back one time until you select the involved module (s). Custom modules should be found in app/code/local/* and app/code/community/* . To do this, disable System> Cache Management configuration caching (or be prepared to refresh this screen each time you change the configuration). You can deactivate local modules in bulk by switching the <disable_local_modules> flag to "true" in app/etc/local.xml . There is no corresponding function for community modules. You will need to update the System Config view to see if this fixes the problem. If not, return app/etc/local.xml and then in app/etc/modules start changing each community flag <active> to false, updating the configuration panel after each until your problem is resolved. If disabling local modules works, perform the same process, but only for files in the local codePool.

If the above does not work, you will need to split your main files into a vigin copy of your version of Magento. The main files for diff:

• app/code/core/*
• lib/*
• app/design/adminhtml/*

Also, make sure there is no Mage namespace in app/code/local and app/code/community . If there is, move it temporarily to exclude its contents as the culprit.

Answer 3

Problem: in the admin panel, if you go to system-> configuration, you find that the page (part of the content) is empty (the title, menu and footer are visible).

Before anything checks your logs in / var / log /.

Try updating all magento pools (system-> manage caches). If this does not work, edit /app/etc/local.xml and disable local modules by setting "disable_local_modules" to true - true. REMEMBER to clear the magenta cache (system-> manage caches) or disable caching before reloading the system configuration page → or perform any other operation. If the message "access denied" appears, you do not have enough privileges for the specific module. To solve, go to system-> permissions. > Roles (select administrators) and click "save role" with permission to "everything." In older versions of magento, or if you have not restored (or cannot), you need to set for system-> permissions-> roles (select administrators) in "custom" and, after selecting everything, save the role.

For a permanent fix (to select "all / all") you need to modify the file /app/etc/config.xml and add the missing user group.

His work is for me .... Thank you