title: ZenCart file upload issue
body: <p>I am facing an issue while file uploading.
  Got below in error log:</p>
  
  <pre><code>#1  is_uploaded_file() called at [/home/public_html/includes/classes/upload.php:86]
  #2  upload-&gt;parse() called at [/home/public_html/manage/includes/modules/new_product_preview.php:148]
  #3  require(/home/public_html/manage/includes/modules/new_product_preview.php) called at [/home/public_html/manage/product.php:120]
  </code></pre>
  
  <p>Limits that are set for file upload:</p>
  
  <pre><code>* file_uploads: On
  * upload_max_filesize: 200M
  * max_input_time: 60
  * memory_limit: 1024M
  * max_execution_time : 100000
  * post_max_size: 200M
  </code></pre>
  
  <p>File up to 2MB uploaded successfully, larger size files not uploaded</p>