phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b8eb88ff5b63913ea8c116f5262943b5' 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 ('b8eb88ff5b63913ea8c116f5262943b5', -1, 1766868320, 1766868320, 'd849d82e', -4, 0, 0)

Line : 187
File : sessions.php