fix:

server/stats.js

@@ -1,13 +1,35 @@
 const db = require('./db')
 
+function toNum(v) {
+  if (v == null || v === '') return 0
+  const n = Number(v)
+  return Number.isFinite(n) ? Math.max(0, Math.floor(n)) : 0
+}
+
 function getStats() {
-  const viewers = db.prepare(
+  const viewersRow = db.prepare(
     "SELECT COUNT(*) as n FROM visits WHERE last_seen > datetime('now', '-2 minutes')"
-  ).get().n
-  const cumulative = db.prepare('SELECT total FROM visitor_count WHERE id = 1').get()?.total ?? 0
-  const feedbackCount = db.prepare('SELECT COUNT(*) as n FROM feedback').get().n ?? 0
-  const shareCount = db.prepare('SELECT total FROM share_count WHERE id = 1').get()?.total ?? 0
-  return { viewers, cumulative, feedbackCount, shareCount }
+  ).get()
+  const cumulativeRow = db.prepare('SELECT total FROM visitor_count WHERE id = 1').get()
+  const feedbackRow = db.prepare('SELECT COUNT(*) as n FROM feedback').get()
+  const shareRow = db.prepare('SELECT total FROM share_count WHERE id = 1').get()
+  let viewers = toNum(viewersRow?.n)
+  let cumulative = toNum(cumulativeRow?.total)
+  let feedbackCount = toNum(feedbackRow?.n)
+  let shareCount = toNum(shareRow?.total)
+  let likeCount = 0
+  let display = null
+  try {
+    display = db.prepare('SELECT viewers, cumulative, share_count, like_count, feedback_count FROM display_stats WHERE id = 1').get()
+  } catch (_) {}
+  if (display) {
+    if (display.viewers != null) viewers = toNum(display.viewers)
+    if (display.cumulative != null) cumulative = toNum(display.cumulative)
+    if (display.share_count != null) shareCount = toNum(display.share_count)
+    if (display.like_count != null) likeCount = toNum(display.like_count)
+    if (display.feedback_count != null) feedbackCount = toNum(display.feedback_count)
+  }
+  return { viewers, cumulative, feedbackCount, shareCount, likeCount }
 }
 
 module.exports = { getStats }