Occasionally, upon first loading Special:SuggestedTags, I encounter an error. The frontend displays the message:
We're sorry, something went wrong. Please check back later or contact us.
After a couple of page reloads, the page functions as expected.
This issue needs repro steps. I have only been able to induce this error in Chromium, and it seems connected to requesting the page with the #popular URL fragment present (e.g., when loading from saved browsing history). However, Ramsey has reportedly seen this when requesting the page even without including the #popular fragment in the URL.