fix

src/Models/OrderCods.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace NexaMerchant\CheckoutCod\Models;
+
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
+use Illuminate\Database\Eloquent\Model;
+use NexaMerchant\CheckoutCod\Contracts\OrderCod as OrderCodContract;
+
+class OrderCods extends Model implements OrderCodContract
+{
+    /**
+     * The attributes that are mass assignable.
+     *
+     * @var array
+     */
+    protected $fillable = ['order_id','ip_address', 'ip_country'];
+
+}