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 ('d68edbe2162c2666250f9ed105f8255c', -1, 1542645830, 1542645830, '36a7702a', 42, 0, 0)

Line : 187
File : sessions.php