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 ('71d5a30558ef1c1c08b8dd760f2a9f01', -1, 1516480275, 1516480275, '36eabeed', 0, 0, 0)

Line : 187
File : sessions.php