Installation Joomla! 5.x • Error "Unsupported PHP Version"

Hi
Just tried to install the latest Joomla version 5.1.1 on my server and got the message "Unsupported PHP Version".

I have PHP 8.3.7 installed on the server.
I have another instance of Joomla on that server which is equally up to date and has been running for a few years and has started to behave erratically, i.e. all the buttons checking the status are all red and claiming that everything is out of date. This since the last two updates.

What is problem and how can I solve it?


Server settings from the site which works, even though problems:

System Information
SettingValue
PHP Built OnLinux b3.tophost.ch 4.18.0-513.18.1.lve.el8.x86_64 #1 SMP Thu Feb 22 12:55:50 UTC 2024 x86_64
Database Typemysql
Database Version10.6.18-MariaDB
Database Collationlatin1_swedish_ci
Database Connection Collationutf8mb4_general_ci
Database Connection EncryptionNone
Database Server Supports Connection EncryptionNo
PHP Version8.3.7
Web ServerLiteSpeed
WebServer to PHP Interfacelitespeed
Joomla! VersionJoomla! 5.1.0 Stable [ Kudumisha ] 16-April-2024 16:00 GMT
Joomla Backward Compatibility PluginEnabled (classes_aliases:"1", es5_assets:"1")
User AgentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Also, a screenshot of the working site admin

Statistics: Posted by iamalive — Thu May 30, 2024 4:33 pm

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