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 ('0b30e7d0cd804a6d5bc6416037962bb1', -1, 1573850690, 1573850690, '03e9d9f2', 1, 0, 0)

Line : 187
File : sessions.php