Warning JUser: :_load: Unable to load user with ID

If after using Joomla QuickStart package you’ve deleted all the “demo” users – the Joomla! will have a problem to associate previously-created content or added items to the user, which no longer exists. The warning message “JUser: :_load: Unable to load user with ID: XX” is telling us that the user with the XX id number could not be loaded, typically because that user has been deleted.

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Sorry! Something went wrong. This page didn’t load Google Maps.

Are you going crazy due to the Google Maps API error:

 

Sorry! Something went wrong.
This page didn’t load Google Maps correctly. See the JavaScript console for technical details.

Google-Maps-Error

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Clear Cache vs. Clear Expired Cache

The are two options in Joomla to clear cache files from the cache folders if enabled under the Site Global Configuration settings.

  1. Clear Cache – This tool will delete all Cache files from the cache folders – including current ones – from your web server.
  2. Clear Expired Cache – This tool will purge all expired cache files from the cache folders.

So, what the difference ?

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Not permitted to use that link to directly access

Error after update to Joomla 3.4.7: You are not permitted to use that link to directly access that page (#xxx)
Impossible to open articles or manage templates and extensions in Joomla! back-end.

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Could not instantiate mail function

If your Joomla server does not support the php mail() function and Joomla attempts to send an email (such as a new user registration email), any of the following message may appear:

  1. Could not instantiate mail function.
  2. The mail() function has been disabled and the mail cannot be sent.
  3. Registration failed: An error was encountered while sending the registration email. A message has been sent to the administrator of this site.

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