I'm getting an error while packing guys what is the reason i need urgent help

[DemirYapim (Demir Yapım)]

how do i clear the cache sir and can you look at my question

If I delete the package, will the textures be deleted?

Friends, I moved the mapi and textures I used in the package to a different file, I want to delete the ones I do not use so that they do not take up space in the game. If I delete it, will the textures be deleted, that is, I have combined the actors I moved to my own file and used in the map, will there be any damage to the map? [20230122_143243]