phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1114 The table 'sfphpbb_sessions' is full

INSERT INTO sfphpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a3b4f351718f1d901d4af9d9f0fc957d', -1, 1715718514, 1715718514, '12d8fe60', -4, 0, 0)

Line : 187
File : sessions.php