I can't start the server

[Slojoooo]

When I try to start the server it immediately stops again. When I looked into the log it says something about:

buttplug : N : Windows Bluetooth Adapter Manufacturer: Unknown Manufacturer

Can anybody help or is there a problem with my bluetooth?

[qdot]

See if this FAQ helps: https://how.do.i.get.buttplug.in/intiface/intiface-desktop.html#intiface-desktop-is-crashing-what-should-i-do

[Kyr4l]

See if this FAQ helps: https://how.do.i.get.buttplug.in/intiface/intiface-desktop.html#intiface-desktop-is-crashing-what-should-i-do

it doesn't help, the FAQ is only useful for windows users, but this bug also happens on linux

[Kyr4l]

FIX : You need libssl1.1

wget http://archive.ubuntu.com/ubuntu/pool/main/o/openssl/libssl1.1_1.1.0g-2ubuntu4_amd64.deb
sudo dpkg -i libssl1.1_1.1.0g-2ubuntu4_amd64.deb

[VoidField101]

it doesn't help, the FAQ is only useful for windows users, but this bug also happens on linux

Well in this case it seems more like the issue happened on Windows

FIX : You need libssl1.1

This is one possibility.
However it might not always be a good idea to reinstall a security relevant package (this is used for cryptography) from a outdated repo that doesn't receive a update (OpenSSL 1.1 itself still receives updates just not on ubuntu) and might be used by other software when installed.

Some distributions like Fedora still offer the openssl1.1 package.
A proper solution probably would be to clone and compile intiface-cli-rs and then replace ~/.config/IntifaceDesktop/engine/IntifaceCLI with the newly compile version. When openssl 3 then it should automatically be used.
Alternative I updated the CI in a forked version to create a fixed prebuild of the cli: https://github.com/voidfield101/intiface-cli-rs/releases/tag/v50-ssl3-t2
(This is just the CLI so you have to replace the IntifaceCLI with the content of the prebuilt zip)