phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'fe15506ffe767a66ef7e0750182d507d' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('fe15506ffe767a66ef7e0750182d507d', -1, 1765811773, 1765811773, 'd849d850', -9, 0, 0)

Line : 187
File : sessions.php