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 ('726444275d52dc618633ccf17b8b8529', -1, 1539964065, 1539964065, '36a174e1', -7, 0, 0)

Line : 187
File : sessions.php