MediaWiki 1.39.0-rc.0: Fatal exception of type "TypeError"

[Woodman]

Hello every body,

I just upgraded Mediaiki to version 1.39 on the website https://www.vbu-ffm.de/UntermainWiki/index.php/Hauptseite.

After installation via https://www.vbu-ffm.de/UntermainWiki/mw-config/index.php I got the error message:

[415f8c982325b1e0fde16358] 2023-04-26 15:42:13: Fataler Ausnahmefehler des Typs „TypeError“
=> Fatal exception of type "TypeError"

When I set $wgShowExceptionDetails in LocalSettings.php to 'true' then I get the following message:

Quote

[e539e46096fad38a067e9df0] /UntermainWiki/ TypeError: MediaWiki\Session\BotPasswordSessionProvider::__construct(): Argument #1 ($grantsInfo) must be of type MediaWiki\Permissions\GrantsInfo, array given, called in /.../UntermainWiki/vendor/wikimedia/object-factory/src/ObjectFactory.php on line 247

Backtrace:

from /.../UntermainWiki/includes/session/BotPasswordSessionProvider.php(47)
#0 /.../UntermainWiki/vendor/wikimedia/object-factory/src/ObjectFactory.php(247): MediaWiki\Session\BotPasswordSessionProvider->__construct(array)
#1 /.../UntermainWiki/vendor/wikimedia/object-factory/src/ObjectFactory.php(152): Wikimedia\ObjectFactory\ObjectFactory::getObjectFromSpec(array, array)
#2 /.../UntermainWiki/includes/session/SessionManager.php(477): Wikimedia\ObjectFactory\ObjectFactory->createObject(array)
#3 /.../UntermainWiki/includes/session/SessionManager.php(536): MediaWiki\Session\SessionManager->getProviders()
#4 /.../UntermainWiki/includes/session/SessionManager.php(243): MediaWiki\Session\SessionManager->getSessionInfoForRequest(WebRequest)
#5 /.../UntermainWiki/includes/WebRequest.php(843): MediaWiki\Session\SessionManager->getSessionForRequest(WebRequest)
#6 /.../UntermainWiki/includes/session/SessionManager.php(164): WebRequest->getSession()
#7 /.../UntermainWiki/includes/Setup.php(448): MediaWiki\Session\SessionManager::getGlobalSession()
#8 /.../UntermainWiki/includes/WebStart.php(86): require_once(string)
#9 /.../UntermainWiki/index.php(44): require(string)
#10 {main}

I'm not that proficient with PHP.
Does anyone have an idea how I can still get MediaWiki to work?