phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f0e01f6a978129559da18e7155c9386b' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f0e01f6a978129559da18e7155c9386b', -1, 1770009023, 1770009023, 'd849d817', -4, 0, 0)

Line : 187
File : sessions.php