[BUG] Translation Fails on TYPO3 v12 (message: 'formality' is not supported for given 'target_lang'.)

[Schwuuuuup]

Describe the bug
The translation process seams to work normaly, but no actual Translation is created. The Original language is prefixed with the usual [This content is not available in English yet]
Log shows:
Mon, 14 Oct 2024 16:46:14 +0200 [ERROR] request="3f0cb91f7e972" component="WebVision.WvDeepltranslate.Client": Bad request, message: 'formality' is not supported for given 'target_lang'. (0)
Mon, 14 Oct 2024 16:46:14 +0200 [WARNING] request="3f0cb91f7e972" component="WebVision.WvDeepltranslate.Service.DeeplService": Translation not successful

To Reproduce
Create German content element (languageID=0) in TYPO3 v12.4.21 / wv_deepltranslate 4.3.1
Create English translation (option DeepL (autodetect))

Expected behavior
The translated conttent element should contain English content instead of German original

TYPO3 Setup

• TYPO3 Version 12.4.21
• Server (Apache-cgi/Apache-fpm/nginx-fm/other), apache/phpfpm in docker
• Database type and version (SQLite/Postgres/MariaDB/MySQL) MariaDB 10.6.19
• PHP version 8.1.30
• DeepL free or paid API? paid
• composer or classic setup? classic

Additional context
Add any other context about the problem here.

[calien666]

Hi an thank you for reporting this bug. We fixed it already in the latest main branch. Could youy check, if the problem with the main exists anymore?

[Schwuuuuup]

Due to technical and infrastructure problems we are not able to build the Extension in composer-mode with our setup. Is there a way to get it as a ZIP. We have the newest version from TER and the Problem is still present. I cloned the extension directly from GIThub (main), but this version caused a ton of errors and had to be uninstalled immediately.