phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '24d0b2cadeb5d5c9944ad6206cd26104' for key 'PRIMARY'

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('24d0b2cadeb5d5c9944ad6206cd26104', -1, 1516233778, 1516233778, '36521d8d', 9, 0, 0)

Line : 187
File : sessions.php