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 ('e0f4176d3f637d09f7daeb741e49f95f', -1, 1519360372, 1519360372, '36c49118', -2, 0, 0)

Line : 187
File : sessions.php