phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ab898e9ea8b09234ffee0202debc1f77' 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 ('ab898e9ea8b09234ffee0202debc1f77', -1, 1765594518, 1765594518, 'd849d836', -4, 0, 0)

Line : 187
File : sessions.php