phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1114 The table 'phpbb_sessions' is full

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('84259df2bb84f4a6eb764bcdbfecb31d', -1, 1575972214, 1575972214, '12cfff31', -6, 0, 0)

Line : 172
File : sessions.php