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 ('5e8176b725e3407b0bd1c57cfde338e9', -1, 1566799849, 1566799849, '22ef9e6b', -9, 0, 0)

Line : 189
File : sessions.php