MySQL error in file: /engine/classes/plugins.class.php at line 373

Error Number: 2006

The Error returned was:
MySQL server has gone away

SQL query:

INSERT INTO dle_plugins_logs (plugin_id, area, error, type, action_id) values ('4', 'engine/inc/addnews.php', '<div class="form-group">\n <label class="control-label col-sm-2">{$lang['edit_et']}</label>\n <div class="col-sm-10">\n <input type="text" class="form-control width-550 position-left" name="title" id="title" maxlength="250" ><button onclick="find_relates(); return false;" class="visible-lg-inline-block btn bg-info-800 btn-sm btn-raised">{$lang['b_find_related']}</button><i class="help-button visible-lg-inline-block text-primary-600 fa fa-question-circle position-right" data-rel="popover" data-trigger="hover" data-placement="right" data-content="{$lang['hint_title']}"></i> <span id="related_news"></span>\n </div> \n </div>', 'file', '27')