Improve "critical error" language

[Ipstenu]

There has been a notable uptick in people coming to WordPress.org when they get the message:

There has been a critical error on this website. Please check your site admin email inbox for instructions.
Learn more about debugging in WordPress.

The link goes to ​https://wordpress.org/support/article/debugging-in-wordpress/

That actually has begun to encourage people to log in to WordPress.org, which would be fine _except_ they're trying to log in as the account they use on their self-hosted version of WordPress. Which fails.

While we're working on improving the messaging when a login fails, maybe we could also do a better job of making sure people know that you cannot log in to WordPress.org with the credentials from your own host.

I know we're trying to balance 'too much info!' on that page, but this is a pretty common point of confusion.

Just to give a metric here, the numbers went from 1-5 a week to 12-20 a day (yes, a day) asking why their account is banned (for people who use 'admin') or non-existent. This is clearly creeping up pretty fast. We've already updated the replies we use to explain, and that seems to be sufficient to help them once they're there, but it would be long-term better that they didn't have to wait on someone to reply.

See also: ​https://meta.trac.wordpress.org/ticket/5590

[Clorith]

I wonder if it would be more helpful to users if the link goes to ​https://wordpress.org/support/article/faq-troubleshooting/ instead perhaps?

That page is more geared towards users than the current one (which is more developer oriented I feel), although it's a bit of a large page, I think we can refine that over time if we change what core references.

[audrasjb]

Link change + replace "Debugging" with "Troubleshooting"

[audrasjb]

52392.diff does the following:

• replace /support/article/debugging-in-wordpress/ link with /support/article/faq-troubleshooting/
• replace "debugging WP" with "troubleshooting WP" as per Sergey’s suggestion on slack

​https://wordpress.slack.com/archives/C02RQBWTW/p1612872581185500?thread_ts=1612872167.182700&cid=C02RQBWTW

[Clorith]

I like it, nice and simple, and will definitely be a benefit to end users I believe, +1 on 52392.diff​ from me

[hellofromTonya]

With Marius' approval above, marking this one for commit.

[SergeyBiryukov]

In 50272:

Site Health: Link to the support article on troubleshooting in "There has been a critical error" message.

This page is more geared towards users than the one on debugging, which is more developer-oriented.

Props audrasjb, Clorith, Ipstenu.
Fixes #52392.