phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'bd1fd1e7071aab181d1ac624a50dbf02' 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 ('bd1fd1e7071aab181d1ac624a50dbf02', -1, 1776049315, 1776049315, 'd849d895', -4, 0, 0)

Line : 187
File : sessions.php