phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b21720c83d0cae7e93addd0f784f9a10' 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) VALUES ('b21720c83d0cae7e93addd0f784f9a10', -1, 1714586509, 1714586509, 'c0a80201', -7, 0, 0)

Line : 187
File : sessions.php