diff --git a/CHANGELOG.md b/CHANGELOG.md
index 24851196a..9835aa3e3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 bump: version to .6  
 update: README  
 update: dependencies  
+update: check log file being viewed, for easy deletion log_viewer.php  
+fix: empty $cats partials/categories.php  
 
 ### 28 Jan, 2019
 update: composer.json  
diff --git a/admin/log_viewer.php b/admin/log_viewer.php
index 2f42e3602..09c3b02da 100644
--- a/admin/log_viewer.php
+++ b/admin/log_viewer.php
@@ -134,7 +134,7 @@ class_check($class);
                 " . mksize(filesize($file)) . "
             </td>
             <td class='has-text-centered w-10'>
-                <input type='checkbox' name='logs[]' value='" . urlencode($file) . "'>
+                <input type='checkbox' name='logs[]' value='" . urlencode($file) . "'" . (!empty($_GET['file']) && $_GET['file'] === $file ? ' checked' : '') . ">
             </td>
         </tr>";
     }
diff --git a/partials/categories.php b/partials/categories.php
index c039a6146..892bc50aa 100644
--- a/partials/categories.php
+++ b/partials/categories.php
@@ -6,15 +6,17 @@
             <div id='parents' class='level-center'>";
 
 $children = '';
-foreach ($grouped as $cat) {
-    $main_div .= format_row($cat, 'parent', $cat['name']);
-    $children .= "
+if (!empty($cats) && is_array($cats)) {
+    foreach ($grouped as $cat) {
+        $main_div .= format_row($cat, 'parent', $cat['name']);
+        $children .= "
             <div id='{$cat['name']}' class='top20 level-center children padding20 bg-02 round10" . (!in_array($cat['id'], $cats) ? ' is_hidden' : '') . "'>";
-    foreach ($cat['children'] as $child) {
-        $children .= format_row($child, 'child', $cat['name']);
-    }
-    $children .= '
+        foreach ($cat['children'] as $child) {
+            $children .= format_row($child, 'child', $cat['name']);
+        }
+        $children .= '
             </div>';
+    }
 }
 
 $main_div .= "