Debug info: Column 'itemid' cannot be null

INSERT INTO mdl_backup_ids_temp (backupid,itemname,itemid,newitemid,parentitemid,info) VALUES(?,?,?,?,?,?)

[array (

0 => 'b25f60f3ead1ddfd4b88346d9fe0f6d8',

1 => 'course_sectionnumber',

2 => NULL,

3 => 0,

4 => NULL,

5 => NULL,

)]

Error code: dmlwriteexception

Stack trace:

line 416 of /lib/dml/moodle_database.php: dml_write_exception thrown

line 952 of /lib/dml/mysqli_native_moodle_database.php: call to moodle_database->query_end()

line 994 of /lib/dml/mysqli_native_moodle_database.php: call to mysqli_native_moodle_database->insert_record_raw()

line 269 of /backup/util/dbops/restore_dbops.class.php: call to mysqli_native_moodle_database->insert_record()

line 1396 of /backup/util/dbops/restore_dbops.class.php: call to restore_dbops::set_backup_ids_cached()

line 175 of /backup/util/plan/restore_structure_step.class.php: call to restore_dbops::set_backup_ids_record()

line 1110 of /backup/moodle2/restore_stepslib.php: call to restore_structure_step->set_mapping()

line 131 of /backup/util/plan/restore_structure_step.class.php: call to restore_section_structure_step->process_section()

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 98 of /backup/moodle2/restore_section_task.class.php: call to base_task->execute()

line 146 of /backup/util/plan/base_plan.class.php: call to restore_section_task->execute()

line 157 of /backup/util/plan/restore_plan.class.php: call to base_plan->execute()

line 315 of /backup/controller/restore_controller.class.php: call to restore_plan->execute()

line 147 of /backup/util/ui/restore_ui.class.php: call to restore_controller->execute_plan()

line 46 of /backup/restore.php: call to restore_ui->execute()

Output buffer: Notice: Undefined variable: oldsection in /home/fred/www/repositories/testing_master/moodle/backup/moodle2/restore_stepslib.php on line 1110