diff --git a/classes/cronlog-renderer.class.php b/classes/cronlog-renderer.class.php
index b7b9fb33ba38fca846024756f16aabc202d72aac..040b50c61bf7a25da7322cb82138313bddd2a199 100644
--- a/classes/cronlog-renderer.class.php
+++ b/classes/cronlog-renderer.class.php
@@ -66,10 +66,12 @@ class cronlogrenderer extends cronlog
         return '<div class="accessandage">'
             . sprintf($this->t("request-time"), date("Y-m-d H:i:s")) . '<br>'
             . sprintf($this->t("last-entry"), $sAge)
+            /*
             .($iAge > 60*24
                 ? " <a href=\"?deleteserverlogs=$this->_sActiveServer\" class=\"btn btn-danger\">Delete server</a>"
                 : ''
             )
+            */
             . '</div>'
         ;
     }
diff --git a/classes/cronlog.class.php b/classes/cronlog.class.php
index 2340d1fd37af0b58a70d24feb66586b1e7e744e8..eec642a77a01733c9ae8115f792438acd539bb33 100644
--- a/classes/cronlog.class.php
+++ b/classes/cronlog.class.php
@@ -147,9 +147,13 @@ class cronlog
         $this->_sDataDir = str_replace("__APPDIR__", dirname(dirname(__FILE__)), $this->_sDataDir);
         $this->_sDataDir = str_replace('\\', '/', $this->_sDataDir);
 
+        /*
+            see delete button _renderAccessAndAge in cronlogrenderer class
+
         if (isset($_GET['deleteserverlogs']) && $_GET['deleteserverlogs']){
             $this->_deleteServerlogs($_GET['deleteserverlogs']);
         }
+        */
 
         $this->getServers();
     }
@@ -158,7 +162,12 @@ class cronlog
     // private
     // ----------------------------------------------------------------------
 
-
+    /**
+     * UNUSED: delete serverlogs and cache files
+     * 
+     * @param  string  $sServer
+     * @return bool
+     */
     protected function _deleteServerlogs(string $sServer): bool
     {
         $dirCronlog="$this->_sDataDir/$sServer";