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 ('1c40f40b8b396ad22a35b8f2e7485256', -1, 1519366125, 1519366125, '36e36835', 25, 0, 0)

Line : 211
File : sessions.php