I got this error today (first time I see it) In developer zone when I updated my plugin (https://moodle.org/plugins/repository_giphy):
Error: AMOS threw exception coding_exception: Coding error detected, it must be fixed by a programmer: You are trying to add a string 'configplugin' that already exists in this component. If this is intentional, use the 'force' parameter
I'm not sure what it means (considering I did not change the language file of my plugin) and I couldn't find any similar error in this forum or on google. Any suggestion?