Assistance Required: Backend-Frontend Connection Error - subnet_not_found

I am facing the same issue but even without my frontend canister still facing it when I try to open the CANDID UI I tried this Dfx WARN: You seem to be running an outdated version of dfx. But I have latest version installed 0.12.1 - #10 by Severin nothgin was working I also tried using node16
info

  • dfx 0.15.3
  • macos m1
  • node v20.10.0
  • cargo 1.77.0-nightly (84976cd69 2024-01-12)
  • rustup 1.26.0 (5af9b9484 2023-04-05)
    This is the version for the rustup toolchain manager, not the rustc compiler.
    The currently active rustc version is rustc 1.77.0-nightly (714b29a17 2024-01-15)