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 ('690eef84e0e78bbd22a29f2604ecc2fa', -1, 1571210522, 1571210522, '22ccbf1f', 38, 0, 0)

Line : 187
File : sessions.php