The log file shows repeated  entries like this

Failed to open serial port , .COM1 , Error code: 2  — The system cannot find the file specified.

This entry is made by SyringePumpPro when attempts are made to connect a pump network on a communications port where that doesn’t exist. IE In this case there is no COM1 on your computer.

If you are using a USB-RS232 convertor then your should follow these instructions to identify the port, Please note that unplugging and repluging in the USB-RS232 adaptor can often cause Windows to assign it to a different COM port.