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 ('dc60ac938016e9531a5c5d0e7b5a20a6', -1, 1542231576, 1542231576, '36a712aa', 6, 0, 0)

Line : 187
File : sessions.php