phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ef551503764cfa989ac182322d9beebc' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('ef551503764cfa989ac182322d9beebc', -1, 1752885412, 1752885412, 'd849d85f', 15, 0)

Line : 158
File : sessions.php