phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e8616aaefb2968541221b9099bf35822' 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 ('e8616aaefb2968541221b9099bf35822', -1, 1768553169, 1768553169, 'd849d834', -4, 0, 0)

Line : 187
File : sessions.php