phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '3b111bf1e49ac4b2ea27ce4d39d5cd8c' 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 ('3b111bf1e49ac4b2ea27ce4d39d5cd8c', -1, 1769044874, 1769044874, 'd849d879', 17, 0, 0)

Line : 187
File : sessions.php