phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e6ce2bead44419b07d2cad56ad51e9ee' 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 ('e6ce2bead44419b07d2cad56ad51e9ee', -1, 1513101996, 1513101996, '36e284c5', 0, 0, 0)

Line : 187
File : sessions.php