Picking the options is also not so much the issue, I can do that too. It's just that as soon as the visibility for language is activated, the blocks are no longer displayed at all.If I then display the settings in the administration, the above-mentioned hooks ("tptitle settings") are no longer set. The hooks for the language settings are displayed there and also the field for entering the different name of the block and I can also activate or deactivate all hooks, but apart from the name only the settings below the selection options for the language are saved. Even deleting a block and creating it again does not solve the problem.
However, only with PHP7.4. Under PHP8, the warning "Undefined variable $value" remains and after disabling the visibility for language, the blocks are also visible again unchanged.
"/TinyPortal/Controller/BlockAdmin.php" line 470