phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '026ef8f49b6d38e0bea8002766bc8a9e' 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 ('026ef8f49b6d38e0bea8002766bc8a9e', -1, 1772037356, 1772037356, 'd849d834', 0, 0, 0)

Line : 187
File : sessions.php