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 ('a3a7486ab55d4ce0c398b2fa6106478c', -1, 1490813926, 1490813926, '3693e828', -10, 0, 0)

Line : 189
File : sessions.php