phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd8e1eb20997508fbb75e2d784aa9024f' 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 ('d8e1eb20997508fbb75e2d784aa9024f', -1, 1539742243, 1539742243, '36e076f7', -6, 0, 0)

Line : 187
File : sessions.php