Unknown column 'ctx.path' in 'field list'

SELECT ctx.path, rc.capability, rc.permission FROM mdl_context ctx JOIN mdl_role_capabilities rc ON rc.contextid=ctx.id WHERE rc.roleid = 6 AND ctx.contextlevel <= 50 ORDER BY ctx.depth, ctx.path

• line 686 of lib/dmllib.php: call to debugging()
• line 256 of lib/accesslib.php: call to get_recordset_sql()
• line 1533 of lib/accesslib.php: call to get_role_access()
• line 675 of lib/setup.php: call to load_all_capabilities()
• line 22 of config.php: call to require_once()
• line 4 of login/index.php: call to require_once()

Unknown column 'mnethostid' in 'where clause'

SELECT * FROM mdl_user WHERE username = 'guest' AND mnethostid IS NULL

• line 686 of lib/dmllib.php: call to debugging()
• line 309 of lib/dmllib.php: call to get_recordset_sql()
• line 273 of lib/dmllib.php: call to record_exists_sql()
• line 28 of login/index.php: call to record_exists()

Duplicate entry 'guest' for key 2

INSERT INTO mdl_user ( AUTH, CONFIRMED, USERNAME, PASSWORD, FIRSTNAME, LASTNAME, EMAIL, LANG, DESCRIPTION, TIMEMODIFIED ) VALUES ( 'manual', 1, 'guest', '084e0343a0486ff05530df6c705c8bb4', 'Khách', ' ', 'root@localhost', 'vi_utf8', 'Người dùng này là một người dùng đặc biệt mà cho phép truy cập chỉ xem tới một số khóa học.', 1217018439 )

• line 1554 of lib/dmllib.php: call to debugging()
• line 2825 of lib/moodlelib.php: call to insert_record()
• line 29 of login/index.php: call to create_guest_record()