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 ('201aa751a908f12d4c4629776293480c', -1, 1527299961, 1527299961, '1714f0c1', 16, 0, 0)

Line : 187
File : sessions.php