You are using a TypoScript Template for TYPO3 8.7 but your TYPO3 version is greater.
Please replace the template "Org [01.0.0] Basis (TYPO3 8.7)" with "Org [01.0.0] Basis"

This is a prompt by the EXT:org. Sorry for the trouble.
Netzmacher\Org\Userfunc\ContentUserfunc::WarnIfisGreaterThan095#66