phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '54cf0597e9bf005829b147d6c4c838e5' 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 ('54cf0597e9bf005829b147d6c4c838e5', -1, 1765537561, 1765537561, 'd849d836', -4, 0, 0)

Line : 187
File : sessions.php