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 ('f700fe13fe0d5b5e48df509c5972720f', -1, 1516700177, 1516700177, '36ea0002', 8, 0, 0)

Line : 187
File : sessions.php