phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9a8da1fd83eb8481bc32a1b51c054660' 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 ('9a8da1fd83eb8481bc32a1b51c054660', -1, 1761793829, 1761793829, 'd849d838', -4, 0, 0)

Line : 187
File : sessions.php