XF 2.1 Phrases untranslated after upgrade

[Finexes]

Hello,

after every upgrade, some phrases show up as untranslated in my language. This also happens when I rebuild master data. It's always the same phrases that are affected, e. g. "development_output_is_available_import_data_from_output_directory", "it_is_not_possible_to_enable_this_add_on", "receive_alert_when_someone" etc. Is it possible, that those are orphaned phrases from previous XF versions? How can I fix that?

Thanks for your help!

 

[Finexes]

Anyone?

 

[Thangvip9x]

Please show screenshots