diff --git a/backend/app.js b/backend/app.js
index eb77cb0..310c7d1 100644
--- a/backend/app.js
+++ b/backend/app.js
@@ -155,18 +155,18 @@ var blockInterval = setInterval( function() {
 			if (pay.test(memo) && txData.confirmations < 100) {
 				var match2 = pay.exec(memo);
 				if (match2 != null) {
-					var session = match[1];
+					var session = match2[1];
 				}
 				if (txData.amount >= 0.001 && txData.amount < 0.005){
-					exptime = blocktime + 3600;
+					exptime = txData.blocktime + 3600;
 				} else if (txData.amount >= 0.005 && txData.amount < 0.025){
-					exptime = blocktime + 24*3600;
+					exptime = txData.blocktime + 24*3600;
 				} else if (txData.amount >= 0.025 && txData.amount < 0.1) {
-					exptime = blocktime + 7*24*3600;
+					exptime = txData.blocktime + 7*24*3600;
 				} else if (txData.mount >= 0.1) {
-					exptime = blocktime + 4*7*24*3600;
+					exptime = txData.blocktime + 4*7*24*3600;
 				}
-		
+
 				usermodel.findOne({session: session}).then(function(doc){
 					if(doc != null) {
 						paymentmodel.findOne({address: doc.address, blocktime: txData.blocktime, amount: txData.amount}).then(function(payments){
@@ -182,9 +182,9 @@ var blockInterval = setInterval( function() {
 								payment.save(function(error) {
 									if (error) {
 										console.log(error);
+									} else {
+										console.log('Payment saved');
 									}
-
-									console.log('Payment saved');
 								});
 							}
 						});
@@ -201,6 +201,32 @@ var blockInterval = setInterval( function() {
 	});
 }, 75000);
 
+var payCheck = setInterval( function() {
+
+	ownermodel.find({}).then((documents) => {
+		if(documents.length > 0){
+			//console.log(documents);
+			async.each (documents, function(document, callback) {
+				paymentmodel.findOne({ address: document.address, expiration: {$gt: Date.now()}}).then(payment => {
+					if (payment != null){
+						document.paid = true;
+						document.save();
+					} else {
+						document.paid = false;
+						document.save();
+					}
+				});
+			}, function (err) {
+				if (err) {
+					console.log(err);
+				} else {
+					console.log("Owners checked for payment");
+				}
+			});
+		}
+	});
+}, 60000);
+
 app.use(cors());
 app.options('*', cors());