[BUGFIX] Fix undefined array key errors

Resolves: #95075
Releases: master
Change-Id: I6c2c9981aac3ccf892767c4205032e8aa2a465e6
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/70863


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Reviewed-by: physikbuddha <r.kaerner@oranto.de>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Benni Mack <benni@typo3.org>
Tested-by: Georg Ringer <georg.ringer@gmail.com>