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 ('d04894e841e6034985dc9e7f5af3ef83', -1, 1519481428, 1519481428, '36a099e9', 10, 0, 0)

Line : 187
File : sessions.php