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 ('a8cd776b68e3abf06777d65fe4edc6b7', -1, 1548273867, 1548273867, '36e23ab1', 10, 0, 0)

Line : 187
File : sessions.php