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 ('75bc9c97c2a5f11d0e600d48aa885a9a', -1, 1560893757, 1560893757, 'c0a80304', 4, 0, 0)

Line : 188
File : sessions.php