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 ('c6698639ce25678c05c00a33f8b43e94', -1, 1519070128, 1519070128, '36e24c1b', 11, 0, 0)

Line : 187
File : sessions.php