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 ('19749e87871ec662fbeb9e4722d08b6f', -1, 1571213479, 1571213479, '22ccbf1f', 67, 0, 0)

Line : 187
File : sessions.php