phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c3a8a96893d9ae63c7c5dd6bf55ae2c4' 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 ('c3a8a96893d9ae63c7c5dd6bf55ae2c4', -1, 1740448686, 1740448686, '12ddbe4f', -4, 0, 0)

Line : 187
File : sessions.php