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 ('ad7f4df59479b85879cc5bf98c9dff4f', -1, 1573938371, 1573938371, '22ccad24', -2, 0, 0)

Line : 187
File : sessions.php