phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ec8a3f1bb641f8d13f84fdc37eb3cd97' 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 ('ec8a3f1bb641f8d13f84fdc37eb3cd97', -1, 1770038557, 1770038557, '0aff0001', 34, 0, 0)

Line : 199
File : sessions.php