Help to troubleshoot POS Infinity Retail Management System

Job ID: 31508616

Budget: $10 – $30 USD

I have an onld POS System which uses a software called Infinity Retail Management System.
The POS system is at the front of house and I have a computer at the back of house (office) who uses the same software and is checking on all sales (done through the front of house POS system) and printing all reports resulting from sales.
Couple of months ago, the link between the two has stopped working.
The software was made by Triquesta International.
I need someone who knows the system and software to help me restore the link.
Please see pictures attached before you contact me.
Please describe your expertise when you place your bid