Platform (Android, iOS, Website): Website
App version number, if a mobile app issue (shown under Settings or About):
Browser, if a website issue (Firefox, Chrome, etc) : Safari
URLs (aka web addresses) of any relevant observations or pages: https://www.inaturalist.org/lists/2316921-Esp-ces-introduites?q=&rank=all&taxon=55968&taxonomic_status=all&view=plain
Screenshots of what you are seeing:
Description of problem: pink English error message in the French interface
Step 1: trying to add to a list a species that already is in that list
Step 2:
Step 3: