Drupal 9.5.7 crashes when i use Language Switcher Dropdown

Thanks, Laurent for following up on the issue.
🐛 Fix TypeError: array_keys(): Argument #1 ($array) must be of type array, null given in Language Drop down Block class Fixed
I was about to release today, But the released was blocked by
📌 Automated Drupal 10 compatibility fixes Fixed

Needs more time for testing and fixing issues if any
Could you please help by testing the 2.0.x-dev in Drupal 9 and Drupal 10

Last commit on code for that was made by Dmitry →

We could do a 8.x-2.1 tag release
But the Status was changed from Reviewed & tested by the community to Needs work in 📌 Automated Drupal 10 compatibility fixes Fixed

Hello.
I'm using Drupal version 9.5.9, after updating to version 9.5.8 and 9.5.9 I get the following error when selecting the language in the LanguageDropdown:

The website encountered an unexpected error. Please try again later.
Error: Call to a member function all() on null in Drupal\lang_dropdown\Form\LanguageDropdownForm->submitForm() (line 347 of /var/www/html/drupal/modules/lang_dropdown/src/Form/LanguageDropdownForm.php)

Please help me, I can't find the solution on the internet.

Hello,

I'm having the same issue. Drupal version 9.5.8 and lang_dropdown version 8.x-2.0.
Any solutions?

Thx