phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1cb8f783e2d206329fd5528f2d95dfd5' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('1cb8f783e2d206329fd5528f2d95dfd5', -1, 1766873888, 1766873888, 'd849d8ae', 3, 0, 0)

Line : 187
File : sessions.php