[Решено] Incorrect Language Switcher Behavior in Header

Background of the issue:
I am experiencing an issue with the language switcher in the header on my website скрытая ссылка. I have been following documentation but have not had any success.

Symptoms:
On the French version, the flag is not displaying at all. On the German version, the flags are duplicated, showing four flags twice (a total of eight flags).

Questions:
Could you please help me resolve the issue with the language switcher in the header?