In our moodle installation, we are facing issue that we cannot duplicate the quiz,somebody cannot attemept the quiz also
following error we are getting
error/error_question_answers_missing_in_db More information about this error Stack trace: line 159 of /backup/moodle2/restore_qtype_plugin.class.php: restore_step_exception thrown line 131 of /backup/util/plan/restore_structure_step.class.php: call to restore_qtype_plugin->process_question_answer() line 103 of /backup/util/helper/restore_structure_parser_processor.class.php: call to restore_structure_step->process() line 125 of /backup/util/xml/parser/processors/grouped_parser_processor.class.php: call to restore_structure_parser_processor->dispatch_chunk() line 91 of /backup/util/helper/restore_structure_parser_processor.class.php: call to grouped_parser_processor->postprocess_chunk() line 148 of /backup/util/xml/parser/processors/simplified_parser_processor.class.php: call to restore_structure_parser_processor->postprocess_chunk() line 92 of /backup/util/xml/parser/processors/progressive_parser_processor.class.php: call to simplified_parser_processor->process_chunk() line 169 of /backup/util/xml/parser/progressive_parser.class.php: call to progressive_parser_processor->receive_chunk() line 253 of /backup/util/xml/parser/progressive_parser.class.php: call to progressive_parser->publish() line ? of unknownfile: call to progressive_parser->end_tag() line 158 of /backup/util/xml/parser/progressive_parser.class.php: call to xml_parse() line 137 of /backup/util/xml/parser/progressive_parser.class.php: call to progressive_parser->parse() line 105 of /backup/util/plan/restore_structure_step.class.php: call to progressive_parser->process() line 153 of /backup/util/plan/base_task.class.php: call to restore_structure_step->execute() line 148 of /backup/util/plan/base_plan.class.php: call to base_task->execute() line 157 of /backup/util/plan/restore_plan.class.php: call to base_plan->execute() line 310 of /backup/controller/restore_controller.class.php: call to restore_plan->execute() line 90 of /course/modduplicate.php: call to restore_controller->execute_plan()
moodle version:2.5.2
Use database for session information :no
database:mysql 5.5.31
php:5.3.19
Please help
Arjun