phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8552493130b7a8992fd85ec0b8198a86' 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 ('8552493130b7a8992fd85ec0b8198a86', -1, 1765104075, 1765104075, 'd849d8bc', -4, 0, 0)

Line : 187
File : sessions.php