Computer will not update - PPA

[Rapidrob]

Reading package lists...
Building dependency tree...
Reading state information...
Calculating upgrade...
The following packages have been kept back:
  linux-generic linux-headers-generic linux-image-generic
The following packages will be upgraded:
  gawk libraw19
2 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
Need to get 676 kB of archives.
After this operation, 8,192 B disk space will be freed.
Do you want to continue? [Y/n] Get:1 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64 gawk amd64 1:5.0.1+dfsg-1ubuntu0.1 [415 kB]
Get:2 http://security.ubuntu.com/ubuntu focal-security/main amd64 libraw19 amd64 0.19.5-1ubuntu1.3 [261 kB]
Fetched 676 kB in 1s (477 kB/s)
(Reading database ...
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 381380 files and directories currently installed.)
Preparing to unpack .../gawk_1%3a5.0.1+dfsg-1ubuntu0.1_amd64.deb ...
Unpacking gawk (1:5.0.1+dfsg-1ubuntu0.1) over (1:5.0.1+dfsg-1) ...
Preparing to unpack .../libraw19_0.19.5-1ubuntu1.3_amd64.deb ...
Unpacking libraw19:amd64 (0.19.5-1ubuntu1.3) over (0.19.5-1ubuntu1.2) ...
Setting up gawk (1:5.0.1+dfsg-1ubuntu0.1) ...
Setting up libraw19:amd64 (0.19.5-1ubuntu1.3) ...
Processing triggers for libc-bin (2.31-0ubuntu9.9) ...
Processing triggers for man-db (2.9.1-1) ...

[Rapidrob]

The other command will end with " reading package list" but will not populate any data even after several minutes.

[stevef]

Have you removed the stacer software and related ppa repository as advised in post 4 ?

[Rapidrob]

I double checked the PPA list and Stacer was still shown with old info. I deleted it and now the computer will update again!
Thank you for the reminder to check the PPA list.

[Rapidrob]

Working great again.