phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '5b1a9ea0f14b65458878bf8b8a56ecae' 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 ('5b1a9ea0f14b65458878bf8b8a56ecae', -1, 1762569436, 1762569436, 'd849d82e', -9, 0, 0)

Line : 187
File : sessions.php