two IMAP servers

Start in apps/user_external/lib/IMAP.php at line 74, then trace the checkPassword path shown in the log for the second IMAP configuration. Confirm the fix by checking that users from both configured servers can authenticate without the internal server error.

How do I connect a second IMAP server for authentication?
Nextcloud Hub 25 Autumn (32.0.2)
Here's the config:

 'user_backends' =>
  array (
    0 =>
    array (
     'class' => '\\OCA\\UserExternal\\IMAP',
     'arguments' =>
      array (
        0 => 'mail.domain1.com',
        1 => 993,
        2 => 'ssl',
        3 => 'domain1.com',
        4 => false,
        5 => false,
        ),.
    ),
    1 =>
    array (
     'class' => '\\OCA\\UserExternal\\IMAP',
     'arguments' =>
     array (
       0 => 'mail.domain2.com',
       1 => 993,
       2 => 'ssl',
       3 => 'domain2.com',
       4 => false,
       5 => false,
       ),
     ),
   ),

User [email protected] logs in normally.
User [email protected] have error Internal Server Error
in nextcloud.log:
{"reqId":"16288Eia1QgwTtaMlrY0","level":3,"time":"2025-12-01T11:13:54+00:00","remoteAddr":"195.96.64.194","user":"--","app":"index","method":"POST","url":"/login","message":"Call to undefined method OC\\Server::getLogger() in file '/var/www/nextcloud/apps/user_external/lib/IMAP.php' line 74","userAgent":"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36","version":"32.0.2.2","exception":{"Exception":"Exception","Message":"Call to undefined method OC\\Server::getLogger() in file '/var/www/nextcloud/apps/user_external/lib/IMAP.php' line 74","Code":0,"Trace":[{"file":"/var/www/nextcloud/lib/private/AppFramework/App.php","line":153,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/Route/Router.php","line":321,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/nextcloud/lib/base.php","line":1061,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/nextcloud/index.php","line":25,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","Line":150,"Previous":{"Exception":"Error","Message":"Call to undefined method OC\\Server::getLogger()","Code":0,"Trace":[{"file":"/var/www/nextcloud/lib/private/User/Manager.php","line":230,"function":"checkPassword","class":"OCA\\UserExternal\\IMAP","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/UidLoginCommand.php","line":29,"function":"checkPasswordNoLogging","class":"OC\\User\\Manager","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/ALoginCommand.php","line":22,"function":"process","class":"OC\\Authentication\\Login\\UidLoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/UserDisabledCheckCommand.php","line":39,"function":"processNextOrFinishSuccessfully","class":"OC\\Authentication\\Login\\ALoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/ALoginCommand.php","line":22,"function":"process","class":"OC\\Authentication\\Login\\UserDisabledCheckCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/PreLoginHookCommand.php","line":34,"function":"processNextOrFinishSuccessfully","class":"OC\\Authentication\\Login\\ALoginCommand","type":"->"},{"file":"/var/www/nextcloud/lib/private/Authentication/Login/Chain.php","line":43,"function":"process","class":"OC\\Authentication\\Login\\PreLoginHookCommand","type":"->"},{"file":"/var/www/nextcloud/core/Controller/LoginController.php","line":353,"function":"process","class":"OC\\Authentication\\Login\\Chain","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":204,"function":"tryLogin","class":"OC\\Core\\Controller\\LoginController","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php","line":118,"function":"executeController","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/AppFramework/App.php","line":153,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->"},{"file":"/var/www/nextcloud/lib/private/Route/Router.php","line":321,"function":"main","class":"OC\\AppFramework\\App","type":"::"},{"file":"/var/www/nextcloud/lib/base.php","line":1061,"function":"match","class":"OC\\Route\\Router","type":"->"},{"file":"/var/www/nextcloud/index.php","line":25,"function":"handleRequest","class":"OC","type":"::"}],"File":"/var/www/nextcloud/apps/user_external/lib/IMAP.php","Line":74},"message":"Call to undefined method OC\\Server::getLogger() in file '/var/www/nextcloud/apps/user_external/lib/IMAP.php' line 74","exception":{},"CustomMessage":"Call to undefined method OC\\Server::getLogger() in file '/var/www/nextcloud/apps/user_external/lib/IMAP.php' line 74"}}