There are a few software situations where the thermometer may not work. The most likely is that the php software has components missing or out of date. Unfortunately it is common with new installations of php8 that the GD Library (for graphics) software does not support the "imagecreatefromgif". The required functionality was removed from the GD library in Version 1.6. It was restored in Version 2.0.28.
Just FYI, the machine that this software is running is:
- PHP version: 8.0.10
- GD Version: bundled (2.1.0 compatible)
- MySQL Server version: mysql Ver 15.1 Distrib 10.3.31-MariaDB, for Linux (x86_64) using readline 5.1
- MySQL Client verson: mysqlnd 8.0.10
- Operating System: Linux 3.10.0-962.3.2.lve1.5.38.el7.x86_64 #1 SMP Thu Jun 18 05:28:41 EDT 2020 GNU/Linux
The operating system may be blank for Windows operating systems.