phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '86f0a0766b288a0987f04a7b584df42c' 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 ('86f0a0766b288a0987f04a7b584df42c', -1, 1757364061, 1757364061, 'd849d8ad', 12, 0, 0)

Line : 187
File : sessions.php