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Site Restoration

#37492 Fatal error after restore

Posted in ‘Site restoration’
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Environment Information

PHP version
PHP version: 8.1.4
CMS Type
Joomla!
CMS Version
n/a
Backup Tool Version
n/a
Kickstart version
n/a

Latest post by nicholas on Tuesday, 19 July 2022 09:53 CDT

Tuesday, 19 July 2022 09:23 CDT

cvacirca

After restore got the following error

Fatal error: Uncaught Error: Undefined constant "MB_OVERLOAD_STRING" in C:\xampp\htdocs\RTjoomla\libraries\vendor\joomla\string\src\phputf8\utf8.php:38 Stack trace: #0 C:\xampp\htdocs\RTjoomla\libraries\vendor\composer\autoload_real.php(66): require() #1 C:\xampp\htdocs\RTjoomla\libraries\vendor\composer\autoload_real.php(56): composerRequire205c915b9c7d3e718e7c95793ee67ffe('2fb9d6f23c8e8fa...', 'C:\\xampp\\htdocs...') #2 C:\xampp\htdocs\RTjoomla\libraries\vendor\autoload.php(7): ComposerAutoloaderInit205c915b9c7d3e718e7c95793ee67ffe::getLoader() #3 C:\xampp\htdocs\RTjoomla\libraries\cms.php(36): require('C:\\xampp\\htdocs...') #4 C:\xampp\htdocs\RTjoomla\administrator\includes\framework.php(18): require_once('C:\\xampp\\htdocs...') #5 C:\xampp\htdocs\RTjoomla\administrator\index.php(40): require_once('C:\\xampp\\htdocs...') #6 {main} thrown in C:\xampp\htdocs\RTjoomla\libraries\vendor\joomla\string\src\phputf8\utf8.php on line 38

Help!

 

 

Tuesday, 19 July 2022 09:53 CDT

nicholas

Your local server does not have the mbstring PHP extension enabled. This is a Joomla requirement since Joomla 1.5. Please enable the mbstring extension.

Also note that this looks like an older Joomla 3 version, guessing from the file paths I see in this error stack trace. Do note that Joomla versions before Joomla 3.10 do NOT support PHP 8.1. If you are trying to restore a Joomla 3.9.15 or earlier site please use PHP 7.3 or 7.4. Do keep in mind that you can only restore a site on a PHP version that all of its code (CMS and extensions) support. If you try to restore it on a PHP version which is too old or too new it won't work.

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!

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