I had set correctly my cron and working some days ago and today suddenly I get the following error... Can someone help me? Thanks in advance

                <style>

                               .ow_debug_cont{padding:15px 0;width:80%;margin:0 auto;}

                               .ow_debug_body{background:#fff;border:4px double;padding:5px;}

                               .ow_debug_cap{font:bold 13px Tahoma;color:#fff;padding:5px;border:1px solid #000;width:250px;margin-top:-20px;}

                               .ow_debug_body .notice{background:#fdf403;color:#555;}

                               .ow_debug_body .warning{background:#f8b423;color:#555;}

                               .ow_debug_body .error{background:#c10505;color:#fff;}

                               .ow_debug_body .exception{background:#093dd3;color:#fff;}

                               .ow_debug_body .vardump{background:#333;color:#fff;}

                               .vardumper .string{color:green}

                               .vardumper .null{color:blue}

                               .vardumper .array{color:blue}

            .vardumper .bool{color:blue}

                               .vardumper .property{color:brown}

                               .vardumper .number{color:red}

            .vardumper .class{color:black;}

            .vardumper .class_prop{color:brown;}

                </style>

               

                               <div class="ow_debug_cont">

                                               <div class="ow_debug_body">

                                                               <div class="ow_debug_cap notice">OW Debug - Notice</div>

                                                               <table>

                                                                              <tr>

                                                                                              <td class="lbl">Message:</td>

                                                                                              <td class="cnt">Undefined index: REQUEST_URI</td>

                                                                              </tr>

                                                                              <tr>

                                                                                              <td class="lbl">File:</td>

                                                                                              <td class="cnt">/home/admin/web/default.domain/public_html/ow_core/ow.php</td>

                                                                              </tr>

                                                                              <tr>

                                                                                              <td class="lbl">Line:</td>

                                                                                              <td class="cnt">108</td>

                                                                              </tr>

                       

                                                               </table>

                                               </div>

                               </div>