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 ('2970a888c8228047ca77145d3d8e4e09', -1, 1508627857, 1508627857, '171456b1', 11, 0, 0)

Line : 211
File : sessions.php