Install libopenmpt-modplug1 by entering the following commands in the terminal:
sudo apt update sudo apt install libopenmpt-modplug1
module music library based on OpenMPT -- modplug compat library
libopenmpt is a cross-platform C++ and C library to decode tracked music files (modules) into a raw PCM audio stream. It is based on the player code of the OpenMPT project, a descendant of the original ModPlug Tracker. . This package contains the modplug compatibility shared library. It is used by programs that want to use libopenmpt's decoder, but are written using libmodplug's API.