(Reading time: 5 - 9 minutes)

“Invalid login” error when trying to update Joomla

161 hits Updated: 13 April 2022 Blog

What causes the “Invalid login” error?

How to fix this error.

“Invalid login” errorOne of the most common problems that people have when updating from one version of Joomla to another is when they encounter a cryptic “Invalid login” error that appears on the screen.  The problem arises from a failure in the script ../administrator/components/com_joomlaupdate/restore.php, however, knowing which line(s) of code generate the error message is not enough to answer the question:  “What is this ‘invalid login’ we're talking about?“References:

  ▫  "Invalid login" when attempting to update Joomla 3.4.8 to 3.7.5
  ▫  Error 'Invalid login' when trying to update to 3.9.22
  ▫  Trying to update from 3.9.8 to 3.9.16, error - invalid login
  ▫  Error: Invalid login during Joomla upgrade
  ▫  Invalid login when upgrading
  ▫  ERROR: Invalid login - Joomla 3.9.1 Update
  ▫  Got error Invalid Login with 3.9.26 update
  ▫  Invalid login on update
  ▫  Update to 3.9.23 stops with Error: Invalid login
  ▫  Errors in 2.5.26, 3.2.6, and 3.3.5
  ▫  ERROR: Invalid login
  ▫  ERROR: Invalid login - Joomla 3.9.6
  ▫  Error: Invalid login
  ▫  3.9.19 to 3.9.20: AJAX Loading Error: Invalid login
  ▫  I can't get update Joomla from 3.7 to 3.9, I see error invalid login
  ▫  Invalid Login during update
  ▫  Again - Invalid login Error

“Invalid login” is a kind of catch-all error condition that occurs when something goes wrong during the unpacking of the Joomla update package.  You’re probably scratching your head at this lack of specificity but that’s really all we can say about the error message.  We are able, however, to list a few common causes that contribute to problems when running the Joomla! Update component even if we cannot pinpoint the exact cause in every circumstance.

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(Reading time: 3 - 5 minutes)

What is the “secret word” in Joomla used for?

229 hits Updated: 08 April 2022 Blog

What is the “secret word” in Joomla’s configuration settings used for?

I’m unable to learn about this “secret word” in Joomla:  what is it’s purpose … [and is it] useful for website owner?  Please tell me its complete usage and advantage if you know.forum user, Joomla Forum, 14-Jan-2011

You may be wondering why I dredged up a question asked ten years ago as a preamble to this article.  It’s actually a very good question that has never been really satisfactorily explained in plain English.  For example, if you take some of the “guided tours” of Joomla’s configuration.php fileJoomla 4 Configuration.php file—8-Sep-2021, inmotion.com; A Guided Tour of Joomla's configuration.php File—12-Jun-2019, Joomlashack in one case there is a suggestion that this is displayable in J! 4.x by going to System » Global Configuration » Server » Server (which isn’t true since J! 2.5) and in another case the only information about this setting is that it’s generated when Joomla! is first installed, is not changeable and used “internally” by Joomla! for security purposes; it is true that you cannot change this value using the Global Configuration facility but you can change it by editing the configuration.php file and it’s true that the value is generated when a J! website is created but the internal purposes of $secret are not explained.  Can you change $secret or can’t you (and what happens if you do)?  To further confuse the matter, some people have recommended that you should change this value https://www.itoctopus.com/25-joomla-important-tips.

In this article we will discuss one line of code in the file configuration.php (at about line 20) located in the root folder of a J! website.  It looks like something like this:

	public $secret = 'RndmL3ttrsNumbrs';

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(Reading time: 3 - 6 minutes)

Joomla “double gzip” problems

210 hits Updated: 05 April 2022 Blog


Lost CSS styling—frontend and backend

Gzip compressionHow To Optimize Your Site With GZIP Compression is a bit of a mixed bag.  While it can improve data transfer speeds and, therefore, perceived better website performance at the client end, people should be careful using Joomla’s Gzip features if they don’t know how they work.

Misusing Joomla’s Gzip features can cause browser errors and can potentially result in you not being able to manage your website.  There are two different problems relating to Gzip in Joomla:  (1) content encoding errors and (2) loss of CSS styling—frontend and backend—also known as the J! 4 “double gzip” problem.

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(Reading time: 4 - 7 minutes)

Which versions of J! are affected?

What causes the “1054 Unknown column 'authProvider' in 'field list'” error?

How to fix this error.

This problem affects people who updated to J! 3.10.7 or J! 4.1.1Release date:  30 March 2022. but it may reappear in a future release after those releases were withdrawn from distribution.  In this article I will try to explain:

  1. What the J! developers were trying to achieve.
  2. How the problem can be reproduced; and
  3. How to workaround the error generated as a consequence.

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