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 ('c2052e0a726fac49380c2c98e2423dd6', -1, 1501187224, 1501187224, '36e01e27', 0, 0, 0)

Line : 187
File : sessions.php