sortable issue fixed

css/admin_style.css

@@ -473,3 +473,6 @@ label.mp_event_virtual_type_des textarea{width:100%;}
         text-align: center;
         padding: 15px;
     }
+    div#mp_event_all_info_in_tab .handle-actions.hide-if-no-js {
+        display: none;
+    }    

inc/mep_event_meta.php

@@ -127,6 +127,11 @@ class MP_Event_All_Info_In_One
 				do_action('mep_admin_event_details_end_of_tab_details', $post_id); ?>
 			</div>
 		</div>
+		<script type="text/javascript">
+			jQuery(function($) {
+				$( "#mp_event_all_info_in_tab" ).parent().removeClass('meta-box-sortables');
+			});
+		</script>
 	<?php
 	}