Add some 20 Mule borax STAT to raise that pH up to 7.2. You could damage your liner. At least one full box.

Find a pool store that does not use test strips, and get another sample to it ASAP. The TA of 100 ppm is Ok if you are testing it with your drop test kit.
The salt value is Ok as well.

If you are getting or waiting for Ben's test kit, I would get a Taylor 2006 kit in the meantime, or equivalent.

You mentioned in a previous post that DC volts was 24. You should also be able to see the amps associated with that. 24 volts is Ok if the amps are in the region of 5 - 6 amps.

Pat