Console warnings I can't seem to remove [BUG]

[Strahilchu]

[22:21:02 INFO]: [ChestCleaner] Enabling ChestCleaner v2.4.4

[22:21:02 WARN]: [ChestCleaner] Could not save ChestCleaner_2-4-4_en_GB.properties to plugins/ChestCleaner/ChestCleaner_2-4-4_en_GB.properties because ChestCleaner_2-4-4_en_GB.properties already exists.

[22:21:02 WARN]: [ChestCleaner] Could not save ChestCleaner_2-4-4_de_DE.properties to plugins/ChestCleaner/ChestCleaner_2-4-4_de_DE.properties because ChestCleaner_2-4-4_de_DE.properties already exists.

[tom2208]

This is caused by the spigot api, idk how to fix it