Can Someone Help Me With This Error Unable To Save Package To ../../content/core/assets/frontendleve

this is the error code:
Unable to save package to ../../Content/Core/Assets/FrontendLevel.umap because the file is read-only!

i have created a new folder where i am saving it in an plugin-folder but it has the same error.
i have also created a new one just to make sure but still same error.
i have not seen anyone else with the same error on this thread

 

You need to start by creating your own Map, using the New Route function. At the moment you are loaded into the default level which is read only.