phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '59c26e8d7c62b8eb0a4a1934dd323b38' 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 ('59c26e8d7c62b8eb0a4a1934dd323b38', -1, 1768656546, 1768656546, 'd849d879', -4, 0, 0)

Line : 187
File : sessions.php