phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'de81e7ec5fb58b3a170826f3ad2121ea' 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 ('de81e7ec5fb58b3a170826f3ad2121ea', -1, 1769832712, 1769832712, 'd849d851', -4, 0, 0)

Line : 187
File : sessions.php