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 ('4012103d1b801d3d3842a9804a30c7be', -1, 1527442702, 1527442702, '36514e87', 14, 0, 0)

Line : 187
File : sessions.php