phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'e15a10d3a2cf3f73148c953191d45fc6' 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 ('e15a10d3a2cf3f73148c953191d45fc6', -1, 1771524207, 1771524207, 'd849d876', 1, 0, 0)

Line : 187
File : sessions.php