Every router's page now has a Logs tab that shows the router's own RouterOS log, read live when you open it.
See the whole log. The tab shows every line the router holds, newest first, with error lines in red. Pick a topic (Errors, Warnings, Critical, PPPoE, Hotspot, DHCP, RADIUS, Interfaces or Firewall) or search the messages to narrow it down, and press Refresh to read the log again. On a computer, the filters and column headings stay at the top of the screen while you scroll down the page.
Ask the copilot about a line. Every line has a sparkle button. It opens the network copilot with that line already asked, so you get a plain explanation and whether you need to do anything about it.
What the log covers. The router keeps its log in memory: roughly its last 1,000 lines, cleared when it reboots. Centipid reads it only when you look and does not store it. If the router is offline, the tab says so instead of waiting on it.