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 ('2e512537b41a1b09a2113b590b4afb99', -1, 1542645912, 1542645912, '36a7702a', 39, 0, 0)

Line : 187
File : sessions.php