That means the download was incomplete. Compare the file size to the official installer size (e.g., 18.2 GB). If yours is 6 GB, you need to resume or restart the download.
The file string "Lumion-2024-4-2-Download.cache" points to a temporary data file generated by the Lumion installer when downloading or updating to software version 2024.4.2. Lumion-2024-4-2-Download.cache
Restart your computer. A background process may have locked the file. After rebooting, try deleting it again. If still locked, boot into Safe Mode or use a tool like LockHunter. That means the download was incomplete
Не хватает прав доступа к веб-форме.