phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'fe5d8b1af2ae8e70aa8e33e422ad9120' 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 ('fe5d8b1af2ae8e70aa8e33e422ad9120', -1, 1770412421, 1770412421, 'd849d88f', -4, 0, 0)

Line : 187
File : sessions.php