phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a2095f08d4f9a442627398e7fd56f66c' 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 ('a2095f08d4f9a442627398e7fd56f66c', -1, 1766948105, 1766948105, 'd849d819', 4, 0, 0)

Line : 187
File : sessions.php