update migration

database/migrations/2018_07_03_014020_add_billing_field_to_supplierbooking_table.php

@@ -15,7 +15,7 @@ class AddBillingFieldToSupplierbookingTable extends Migration
     {
         Schema::table('supplier_bookings', function($table)
         {
-            $table->double('billing_amount');
+            $table->double('billing_amount')->nullable();
         });
     }
 

database/migrations/2018_07_03_014343_add_salestax_field_to_supplierbooking_table.php

@@ -15,7 +15,7 @@ class AddSalestaxFieldToSupplierbookingTable extends Migration
     {
         Schema::table('supplier_bookings', function($table)
         {
-            $table->double('salestax_amount');
+            $table->double('salestax_amount')->nullable();
         });
     }
 

database/migrations/2018_07_05_041532_add_name_in_users_table.php

@@ -15,7 +15,7 @@ class AddNameInUsersTable extends Migration
     {
         Schema::table('users', function($table)
         {
-            $table->string('name');
+            $table->string('name')->nullable();
         });
     }
 

database/migrations/2018_07_20_175339_add_orderno_n_paymentfor_field_to_bookings_table.php

@@ -15,7 +15,7 @@ class AddOrdernoNPaymentforFieldToBookingsTable extends Migration
     {
         Schema::table('bookings', function (Blueprint $table) {
             $table->string('order_no')->nullable();
-            $table->string('payment_for');
+            $table->string('payment_for')->nullable();
         });
     }