phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f8dd4e0f039c6d28d3dbeba873016cf1' 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 ('f8dd4e0f039c6d28d3dbeba873016cf1', -1, 1765936022, 1765936022, 'd849d836', -4, 0, 0)

Line : 187
File : sessions.php