phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ea8a9e39bf81d36b41a9cdad7e6ce895' 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 ('ea8a9e39bf81d36b41a9cdad7e6ce895', -1, 1770165006, 1770165006, 'd849d8a2', -4, 0, 0)

Line : 187
File : sessions.php