corect errors and QR Code for Social Media Engagement

We would like to implement several improvements to an e-shop, including:
Full performance optimization to ensure faster loading speeds,
Removal of unnecessary plugins,
Error detection and correction,
Mobile responsiveness and optimization,
Fixing the “Contact Us” section.
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Feature Request: QR Code – Social Media Engagement & Discount Code

Objective:
Encourage customers to engage with our social media (Instagram & Facebook) and reward them with a discount for their next order.

Requirements:

QR Code Functionality

When scanned, the QR code should redirect the customer to our Instagram and Facebook pages.

Social Media Engagement Tracking

The system should verify that the customer has completed both actions:

Liked the Facebook page

Followed the Instagram account

Phone Number Registration

After completing the above actions, the customer should be prompted to enter their mobile phone number.

Discount Code Delivery

Once the mobile number is submitted, the system should automatically generate and send a unique discount code to the customer via Viber.

The discount code should be valid for the customer’s next order.

Admin Controls

Ability to configure discount percentage and expiration period of the discount code.

Export/track phone numbers and discount codes for marketing/reporting purposes.