Looks like the server pack is out of date, which coming from the FTB download API, that’s not good.
Could be an issue with their end, or they’re starting to cut off third party downloads.
You just installed the modpack today in AMP right?
You can download the Modpack installer from their site here (just tell it to use 1.11.0 so it matches your client version): Feed The Beast - FTB Presents Direwolf20 1.19
Run the installer locally in a folder on your PC, then use AMP’s built-in SFTP or web File Manager to upload the files
Or alternatively, you could downgrade your client version since the server is already up and running
thanks for your help! i have now installed direwolf20 1.19 version 1.10.3 locally on my pc. this is the last stabel version that was available… 1.11.0 is the last version of direwolf20 1.18 but it is beta