Admin panel problem 1.8.1.0

Question

I have problem with so old version Magento (customer didn't moved for a whole time). I can login in admin panel, but nothing can press. No one button, any action, nothing.

I tried this one: increased

memory_limit = 128M

and clear cache

 sync; echo 3 > /proc/sys/vm/drop_caches

But nothing happens(

Answer 1

To debug this,

Initial Steps to identify the issue

• check the browser console to get any errors reported

• check the system.log and exception.log in var/log directories

• check the PHP and Webserver (Apache / Ngingx) logs

If its a production store, enable the maintenance mode (add the maintenance.flag) and enable the developer mode in index.php file

Mage::setIsDeveloperMode(true); // Enables Developer Mode

You can also keep the store in production mode and enable the developer mode only for your IP in index.php

$allowed = array('xx.xxx.xx.xxx);
if (in_array($ip, $allowed)) { 
 Mage::setIsDeveloperMode(true); // Enables Developer Mode
 ini_set('display_errors', 1); // lets also set this, though turning on developer mode is sufficient
 error_reporting(E_ALL & ~E_WARNING & ~E_NOTICE); 
}

These steps are very much sufficient to get the actual error behind the issue that you face.

As a sidenote, Have been working with Magento since 1.3.x. days and these steps are so basic and fundamental to solve the page loading issues due to non-explicit fatal errors / exceptions, that every backend magento developer should know.