fix null merchant image crash

@@ -237,8 +237,8 @@ extension UIImage {
             
             
         } else {
         } else {
             //No cache, so create new one and set image
             //No cache, so create new one and set image
-            let url = URL(string: urlString)
-            URLSession.shared.dataTask(with: url!, completionHandler: { (data, response, error) in
+            if let url = URL(string: urlString) {
+                URLSession.shared.dataTask(with: url, completionHandler: { (data, response, error) in
                     if let error = error {
                     if let error = error {
                         print(error)
                         print(error)
                         return
                         return
@@ -254,6 +254,7 @@ extension UIImage {
                 }).resume()
                 }).resume()
             }
             }
         }
         }
+    }
 }
 }
 
 
 typealias GradientPoints = (startPoint: CGPoint, endPoint: CGPoint)
 typealias GradientPoints = (startPoint: CGPoint, endPoint: CGPoint)