EWA App Showing Russian Instead of English on iPhone

I am using the EWA app on my iPhone and for about a week many parts of the app have started to appear in Russian instead of English. Because of this I cannot properly read and use the content I paid for and the app is no longer useful to me. My device language is English and I want to use EWA in English as well, but the interface and messages inside the app still appear in Russian and I cannot change this from the settings. I kindly request that the language in my account and app be corrected to English as soon as possible so that I can read and use the app normally again, and that this problem be checked so it does not repeat in the future.