You probably followed this tutorial https://blog.prestatuts.com/prestashop-1-7-display-language-flags/
so here:
/themes/YOUR_THEME/modules/ps_languageselector/ps_languageselector.tpl
You probably followed this tutorial https://blog.prestatuts.com/prestashop-1-7-display-language-flags/
so here:
/themes/YOUR_THEME/modules/ps_languageselector/ps_languageselector.tpl
/themes/YOUR_THEME/modules/ps_languageselector/ps_languageselector.tpl