Unable to start aiStarter in Ubuntu MATE Hirsute Hippo

So, have successfully downloaded and installed the aiStarter Debian Package. I started the command with /usr/google/appinventor/commands-for-Appinventor/aiStarter & in the terminal and it looks like it started correctly.

The result I got for starting it was this:
Bottle server starting up (using WSGIRefServer())...
Listening on http://127.0.0.1:8004/
Hit Ctrl-C to quit.

But when I go to Connect > Emulator, it fails to start and I get this

 127.0.0.1 - - [22/Apr/2021 12:41:23] "GET /ping/ HTTP/1.1" 200 38
/usr/google/appinventor/commands-for-Appinventor/adb: error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory
Traceback (most recent call last):
  File "/home/mckinney/Development/repo/mit-cml/appinventor-setup/Linux/aiStarter/build/aiStarter/out00-PYZ.pyz/bottle", line 737, in _handle
  File "/home/mckinney/Development/repo/mit-cml/appinventor-setup/Linux/aiStarter/build/aiStarter/out00-PYZ.pyz/bottle", line 1454, in wrapper
  File "<string>", line 61, in echeck
  File "<string>", line 98, in checkrunning
  File "/home/mckinney/Development/repo/mit-cml/appinventor-setup/Linux/aiStarter/build/aiStarter/out00-PYZ.pyz/subprocess", line 573, in check_output
CalledProcessError: Command '/usr/google/appinventor/commands-for-Appinventor/adb devices' returned non-zero exit status 127
127.0.0.1 - - [22/Apr/2021 12:41:24] "GET /echeck/ HTTP/1.1" 500 748

Is there something I'm doing wrong? I'm running the latest version of Ubuntu MATE.

NAME="Ubuntu"
VERSION="21.04 (Hirsute Hippo)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 21.04"
VERSION_ID="21.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=hirsute
UBUNTU_CODENAME=hirsute

This topic may help?