(NOBIDS) fix validator-page for valis that got sync-duties at the sam…

…e day they have activated

handlers/validator.go

@@ -731,7 +731,8 @@ func Validator(w http.ResponseWriter, r *http.Request) {
 		if len(actualSyncPeriods) > 0 {
 			// get sync stats from validator_stats
 			syncStats := types.SyncCommitteesStats{}
-			if lastStatsDay > 0 {
+			// check if validator has been active in the last exported stats day
+			if lastStatsDay > 0 && validatorPageData.ActivationEpoch <= lastStatsDay*utils.EpochsPerDay() {
 				err = db.ReaderDb.Get(&syncStats, `
 					SELECT
 						COALESCE(participated_sync_total, 0) AS participated_sync,