phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '1c21ba2cde4a82a4f16c90bb3f5d3f06' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin, priv_session_id) VALUES ('1c21ba2cde4a82a4f16c90bb3f5d3f06', -1, 1714318591, 1714318591, 'ac453b4a', -4, 0, 0, 'c14b7c00d075750720f470165be61113')

Line : 187
File : sessions.php