The "all slots for the slow download are in use" message is a common restriction on file-hosting sites like to push users toward paid premium accounts
If you’ve ever tried to grab a file from only to be met with the frustrating message: "All slots for the slow download are in use now, please try again later," you aren't alone. This is a common bottleneck for free users on many cloud hosting platforms. The "all slots for the slow download are
: Since slots are often tracked by IP address, changing your IP with a VPN can sometimes reset your status and grant you a new slot. Contact support and mention the exact error message