phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6a0a0f3e3e16ec85b26d56dcc158fb9a' 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 ('6a0a0f3e3e16ec85b26d56dcc158fb9a', -1, 1781653471, 1781653471, 'c0a81011', -9, 0, 0)

Line : 187
File : sessions.php