Simple OFFLINE/ONLINE Sync Feature for Laravel Accounting System running on Xampp and Cpanel

Job ID: 34408852

Budget: $30 – $250 USD

PLEASE READ THE SUGGESTED TOOLS BELOW THE PROJECT DESCRIPTION AND TELL ME YOUR OPTION OR SUGGEST HOW YOU CAN DO IT IN MY INBOX. IF YOU DON'T WE MIGHT NOT RESPOND TO YOUR BID.

I have an Accounting System (Ultimate POS) running Offline on Xampp Server and online on Cpanel. I need a sync between the two databases.

I want a simple script or function that can post ( MYSQL Database) Offline data to Cpanel when there's a connection. And to fetch Online Data when there's an active connection.

Crucial Offline posts to be synced to the online database are just POS Sales and Quotations.
the rest of the features can be used on the online version

I have given the job to many freelancers for the past 2 weeks and they couldn't deliver. From my research i came up with the following possible solutions, in your bid, let me know which one could work best.

SUGGESTED TOOLS/SOLUTIONS:
1. Chrome Extension with offline data storage and sync when network is available
2. MySQL Workbench Available on the following link: https://dev.mysql.com/doc/workbench/en/wb-database-synchronization.html

A Demo of the Software is available on the following link. Go to POS Page. That's the page i want to be accessible mostly when there's network problem. Link:
https://pos.ultimatefosters.com/login

Project to be complete ASAP.
Please May you Indicate TOTAL Hours it will take to complete task in BID. No Chancers. PLEASE.