phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '26af16d08208a8ce1c8471ca452cb096' 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 ('26af16d08208a8ce1c8471ca452cb096', -1, 1527272885, 1527272885, '36a2a3b5', 2, 0, 0)

Line : 187
File : sessions.php