phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ce2ff2c5afddc0f2818097a5b9a6e7f7' 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 ('ce2ff2c5afddc0f2818097a5b9a6e7f7', -1, 1770745227, 1770745227, 'd849d88f', -4, 0, 0)

Line : 187
File : sessions.php