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 ('5f9d1bbb58d14937a7c6ec52f2c65407', -1, 1493381541, 1493381541, '17141874', 29, 0, 0)

Line : 211
File : sessions.php