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 ('199b08d1b288ba5fd9574660d51326aa', -1, 1550592288, 1550592288, '22e2d0b9', 14, 0, 0)

Line : 189
File : sessions.php