This problem can happen becouse either the download is not working or not there.
Or submit your problem
Submit(https://forms.office.com/Pages/ResponsePage.aspx?id=DQSIkWdsW0yxEjajBLZtrQAAAAAAAAAAAAMAANRQEixURjQyRzI1U01ZSjVMQkVQTEJINkZFVFVaTy4u)
Try deleting localthumbcache.package
Still need help try here.(https://forms.office.com/Pages/ResponsePage.aspx?id=DQSIkWdsW0yxEjajBLZtrQAAAAAAAAAAAAMAANRQEixURjQyRzI1U01ZSjVMQkVQTEJINkZFVFVaTy4u)
Go to •••/Game Options/Other and enable Custom Content and Mods
