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 ('452c70b3c9d068473b0ee0b47b6b883a', -1, 1550592349, 1550592349, '22e2d0b9', 15, 0, 0)

Line : 189
File : sessions.php