WP Admin Login screen language is reset to English

I am using this plugin in my all client’s website and all website’s admin language is Suomi/Finnish always and I always change default admin url for security purpose but after updating wordpress 6.7 then all website’s admin login screen language is reset to english even if main admin language is something else.
When I disable this plugin then it is working fine. Can you please provide solution how can we set all wp-admin screen language text set according to admin language like Suomi as per my client’s websites ?

Thanks