phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '705526fb42baf18030c39150154309e9' 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 ('705526fb42baf18030c39150154309e9', -1, 1518976597, 1518976597, '36e36835', -10, 0, 0)

Line : 187
File : sessions.php