How to clear the WP cache?

Question

WordPress

I create two fields for the address. One for the English version of the site, the other for the Russian. Polylang plugin (for multilingualism) and Theme Options for additional header and footer fields.

<?php if ( get_locale() == 'en_GB' ) { ?>
<?php if(ot_get_option('adress_text_eng')) { ?>
Central office:
<?php echo ot_get_option('adress_text_eng'); ?>

<?php } ?>
<?php } else { ?>
<?php if(ot_get_option('adress_text')) { ?>
Central office:
<?php echo ot_get_option('adress_text'); ?>

<?php } ?>
<?php } ?>

And here and there it gives out the text from the Russian field. But after that, I change the text in the Russian field, but it only changes on the Russian page, in English it gives out the Russian text that was before. Somehow the text is cached along the way, I don’t understand. How to clean it? Used the WordPress Super Cache plugin but nothing helped. What could be the problem? maybe the database needs to be cleaned somehow?