phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5a90ac808fb47185a06f0a93f3594160' 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 ('5a90ac808fb47185a06f0a93f3594160', -1, 1769871917, 1769871917, 'd849d851', -4, 0, 0)

Line : 187
File : sessions.php