by Guillermo Madero S..
Hi Douglas,
Do both servers have the same OS and web environment (web server, db server, php version)? Did anything change? See for example:
https://bugs.php.net/bug.php?id=63245
In that case, it seems that the com_dotnet extension had to be enabled in the PHP php.ini configuration file by adding the following lines:
[COM_DOT_NET]
extension=php_com_dotnet.dll
Have you checked the documentation pages? You are trying to do both, an upgrade and a migration: Moodle install.