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 ('bc9596dab78817ab0c2428cb0632b1e2', -1, 1493381719, 1493381719, '17141874', 23, 0, 0)

Line : 211
File : sessions.php