Almost right If you look at the plugin page https://moodle.org/plugins/filter_multilang2 you will see the link to their bug tracker is https://github.com/iarenaza/moodle-filter_multilang2/issues
Moodle Tracker is mostly used by the core team only. Most plugin developers host their own bug tracker elsewhere, typically on Github.
We will now close your report in the Moodle tracker, you will still be able to copy & paste your bug report.