ElixirLS server initialization failed

I have a similar problem (but with a supported version: Elixir 1.13.4 (compiled with Erlang/OTP 24).

It always says the same when starting VS Code.

could not compile dependency :sourceror, “mix compile” failed. You can recompile this dependency with “mix deps.compile sourceror”, update it with “mix deps.update sourceror” or clean it with “mix deps.clean sourceror”

The thing is - I don’t have this dependency in my workspace, never had and I don’t need it. But I cannot clean it. Any restarts, deleting of deps etc. didn’t work. Do you have any other ideas how to solve this?