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 ('3d07240a366e37ae99d60af7093a3fa5', -1, 1519415939, 1519415939, '36a74b1c', 0, 0, 0)

Line : 187
File : sessions.php