phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '78e9aeea1f96796df6277d784c55287e' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('78e9aeea1f96796df6277d784c55287e', -1, 1762153055, 1762153055, 'c0a81008', -4, 0, 0)

Line : 187
File : sessions.php