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 ('45f8a165eae8c057042eae822adaf81a', -1, 1542288428, 1542288428, '3692c318', -4, 0, 0)

Line : 186
File : sessions.php