Rework instructions for missing Cypress binary in CI (#6170)

Author: MikeMcC399

docs/app/references/error-messages.mdx

@@ -610,6 +610,9 @@ if you've exhausted all other possibilities.
 
 ## CLI Errors
 
+Errors in this section may occur when using the [Cypress command line (CLI)](/app/references/command-line).
+They may also apply to running Cypress programmatically through the [Cypress Module API](/app/references/module-api).
+
 ### <Icon name="exclamation-triangle" color="red" /> You passed the `--record` flag but did not provide us your Record Key.
 
 You may receive this error when trying to run Cypress tests in
@@ -659,12 +662,18 @@ We will automatically apply the record key environment variable.
 
 ### <Icon name="exclamation-triangle" color="red" /> A Cached Cypress Binary Could not be found
 
-This error occurs in CI when using `cypress run` without a valid Cypress binary
-cache installed on the system (on linux that's `~/.cache/Cypress`).
+This error occurs in CI when attempting to use `cypress run` or `cypress verify` CLI commands
+without having a valid Cypress binary cache installed on the system.
+
+The Cypress binary is downloaded and installed into a [global cache folder](/app/references/advanced-installation#Binary-cache)
+with a package manager install command (such as `npm ci`, `npm install`, `yarn install` or `pnpm install`).
+The Cypress cache can also be loaded from a CI cache that was saved from a previous CI run.
+
+If you are using pnpm, ensure you are following the [pnpm configuration](/app/get-started/install-cypress#pnpm-Configuration)
+instructions, otherwise pnpm may skip the Cypress binary installation.
 
-To fix this error, follow instructions on
-[caching the cypress binary in CI](/app/continuous-integration/overview#Caching),
-then bump the version of your CI cache to ensure a clean build.
+If you are using CI caches, then review also the recommendations for
+[caching the Cypress binary in CI](/app/continuous-integration/overview#Caching).
 
 ### <Icon name="exclamation-triangle" color="red" /> Incorrect usage of `--ci-build-id` flag