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 ('2aa2fc1d679d6e74289ca23d7a2d8c1d', -1, 1519097491, 1519097491, '321322ff', 0, 0, 0)

Line : 187
File : sessions.php