I went back to the beginning. I reinstalled 32bit Linux Mint 19.3. I updated and upgrade it. Then added ppa:mutlaqja/ppa and reloaded launchpad keys using the software manager. When I issued the sudo apt-get install indi-full here is what terminal did:
myusername@DelLaptop:~$ sudo apt-get install -y indi-full gsc
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
indi-full : Depends: libindi1 (>= 1.7) but it is not installable
Depends: indi-eqmod but it is not going to be installed
Depends: indi-sx but it is not going to be installed
Depends: indi-sbig but it is not going to be installed
Depends: indi-apogee but it is not going to be installed
Depends: indi-gphoto but it is not going to be installed
Depends: indi-qsi but it is not going to be installed
Depends: indi-fishcamp but it is not going to be installed
Depends: indi-maxdomeii but it is not going to be installed
Depends: indi-asi but it is not going to be installed
Depends: indi-aagcloudwatcher but it is not going to be installed
Depends: indi-ffmv but it is not going to be installed
Depends: indi-dsi but it is not going to be installed
Depends: indi-qhy but it is not going to be installed
Depends: indi-gpsd but it is not going to be installed
Depends: indi-mi but it is not going to be installed
Depends: indi-duino but it is not going to be installed
Depends: indi-fli but it is not going to be installed
Depends: indi-nexstarevo but it is not going to be installed
Depends: indi-nexdome but it is not going to be installed
Depends: indi-gpsnmea but it is not going to be installed
Depends: indi-armadillo-platypus but it is not going to be installed
Depends: indi-mgen but it is not going to be installed
Depends: indi-shelyak but it is not going to be installed
Depends: indi-nightscape but it is not going to be installed
Depends: indi-altaircam but it is not going to be installed
Depends: indi-toupcam but it is not going to be installed
Depends: indi-atik but it is not going to be installed
E: Unable to correct problems, you have held broken packages.