phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5a9a4608e571c2a5fb0b8083472cd641' 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 ('5a9a4608e571c2a5fb0b8083472cd641', -1, 1753614738, 1753614738, 'd849d8de', 4, 0, 0)

Line : 187
File : sessions.php