phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ae20cef6f68c88a0bd71b2b9cb9ecf7c' 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 ('ae20cef6f68c88a0bd71b2b9cb9ecf7c', -1, 1550278575, 1550278575, '22e5c2c6', 23, 0, 0)

Line : 198
File : sessions.php