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 ('d74db6701a5dc8a6ad188f79aa0bdd04', -1, 1550592397, 1550592397, '22e2d0b9', 10, 0, 0)

Line : 189
File : sessions.php