Improve "Tracing has already been started" message

### FAQ

- [X] Yes, my issue is not about [variability](https://github.com/GoogleChrome/lighthouse/blob/main/docs/variability.md) or [throttling](https://github.com/GoogleChrome/lighthouse/blob/main/docs/throttling.md).
- [X] Yes, my issue is not about a specific accessibility audit (file with [axe-core](https://github.com/dequelabs/axe-core) instead).

### URL

https://machupicchuperuagency.com/

### What happened?

Protocol error (Tracing.start): Tracing has already been started (possibly in another tab).
```
Channel: DevTools
Initial URL: https://machupicchuperuagency.com/
Chrome Version: 120.0.0.0
Stack Trace: it: Protocol error (Tracing.start): Tracing has already been started (possibly in another tab).
at (devtools://devtools/bundled/third_party/puppeteer/puppeteer.js:1:35543)
at new jt (devtools://devtools/bundled/third_party/puppeteer/puppeteer.js:1:35582)
at Ht.create (devtools://devtools/bundled/third_party/puppeteer/puppeteer.js:1:34950)
at s._rawSend (devtools://devtools/bundled/third_party/puppeteer/puppeteer.js:1:73366)
at $t.send (devtools://devtools/bundled/third_party/puppeteer/puppeteer.js:1:36495)
at I1.sendCommand (devtools://devtools/bundled/third_party/lighthouse/lighthouse-dt-bundle.js:446:13207)
at t.startSensitiveInstrumentation (devtools://devtools/bundled/third_party/lighthouse/lighthouse-dt-bundle.js:13:55448)
at async devtools://devtools/bundled/third_party/lighthouse/lighthouse-dt-bundle.js:446:21110
at async collectPhaseArtifacts (devtools://devtools/bundled/third_party/lighthouse/lighthouse-dt-bundle.js:446:21238)
at async _navigation (devtools://devtools/bundled/third_party/lighthouse/lighthouse-dt-bundle.js:449:11655)
```

### What did you expect?

Complete report

### What have you tried?

_No response_

### How were you running Lighthouse?

Chrome DevTools

### Lighthouse Version

11.2.0

### Chrome Version

_No response_

### Node Version

_No response_

### OS

_No response_

### Relevant log output

_No response_