phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e6bec6a20968a57d69b04e8766fac1f1' 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 ('e6bec6a20968a57d69b04e8766fac1f1', -1, 1777151703, 1777151703, 'd849d8ee', -4, 0, 0)

Line : 187
File : sessions.php