fix login if uaer_id is null

application/views/interface_assets/footer.php

@@ -70,8 +70,9 @@ function load_was_map() {
 <!-- Version Dialog START -->
 
 <?php
-$versionDialog = $this->optionslib->get_option('version_dialog');
+if($this->session->userdata('user_id') != null) {
-if($versionDialog != "disabled") {
+    $versionDialog = $this->optionslib->get_option('version_dialog');
+    if($versionDialog != "disabled") {
         $confirmed = $this->user_options_model->get_options('version_dialog', array('option_name'=>'confirmed'))->result();
         $confirmation_value = (isset($confirmed[0]->option_value))?$confirmed[0]->option_value:'false';
         if ($confirmation_value != 'true') {
@@ -80,6 +81,7 @@ if($versionDialog != "disabled") {
                 displayVersionDialog();
             </script><?php
         }
+    }
 }
 ?>