Hi, I'm trying to upgrade from 3.2 to 3.6 but I see the error :
"Coding error detected, it must be fixed by a programmer: The data source class does not exist."
Is there a fix ?
How are you upgrading?
Are you following docs:
https://docs.moodle.org/400/en/Upgrading
The link above might show 400 but the process is the same for older versions of Moodle.
This last one about dataroot ... use whatever you have to browse files and view the config.php file in your moodle code. There is a dataroot variable defined there .... it's a path. Jot down the path then use the file browser to see about that moodledata directory ... is it found where the config file says it is? Ownerships and permissions check on moodledata and all files/folders contained there in should be world readable and writable.
Does your server meet the requirements for PHP and DB needed to upgrade to 3.11?
Might consult this chart
http://www.syndrega.ch/blog/#php-and-dbms-compatibility-of-major-moodle-releases
'SoS', Ken