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 ('ba2e3a2938c04fd2d5820f03c4c5c0aa', -1, 1542645790, 1542645790, '36a7702a', 0, 0, 0)

Line : 187
File : sessions.php