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 ('3b26b38c6f767474af87c3208b6dabf9', -1, 1519175395, 1519175395, '36e2fd22', -4, 0, 0)

Line : 211
File : sessions.php