added checking amount

luckydiamond/src/components/PaymentsModal.vue

@@ -64,6 +64,7 @@ export default {
   watch: {
     amount(newAmount) {
       console.log(newAmount)
+      if (!this.amount < 0 && this.amount !== '' ) {
         this.offBtn = true
         console.log('OFFBTN', this.offBtn)
         setTimeout(() => {
@@ -81,6 +82,7 @@ export default {
           }
         }, 2000)
       }
+    }
   },
   methods: {
     closeModal() {