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 ('e1b62920f47cde7e876f7a0b9395e54f', -1, 1519338383, 1519338383, '36e22175', 12, 0, 0)

Line : 187
File : sessions.php