DDD 3.3.12 (i386-apple-darwin15.0.0) gets `BadFont' error

[cli]

Hellow,

I just install DDD on my mac under OS Catalina. Then I type ddd in my terminal.

I get this error.

bash-3.2$ more ~/.ddd/log 

GNU DDD 3.3.12 (i386-apple-darwin15.0.0)

Copyright (C) 1995-1999 Technische Universit<E4>t Braunschweig, Germany.

Copyright (C) 1999-2001 Universit<E4>t Passau, Germany.

Copyright (C) 2001 Universit<E4>t des Saarlandes, Germany.

Copyright (C) 2001-2009 Free Software Foundation, Inc.

Compiled with GCC 4.2.1 Compatible Apple LLVM 7.0.0 (clang-700.0.72)

Requires X11R6, Xt11R6, Motif 2.3.4 (Motif Version 2.3.4)

Includes XPM 3.4.11, Athena Panner (7000002L), Manual, App defaults, DDD core

Built 2015-11-27 by (unknown).

$  ddd

!  Xt error: Unresolved inheritance operation

!  Xt error

!  Cannot save options