Resolve Traveller Theme on my WordPress site Price Issue

I’m running the Traveller theme on my WordPress site and every activity I list shows the wrong price the moment a visitor selects an activity ticket type. I hope used some ACF PLugin to add extra pricing.
All was running good before few months, but i updated plugin and theme inbetween, so some issues created. I want a permanant solution for this and files should be in child theme only.

What I need is a clean fix that restores the correct price display as soon as an activity ticket type is chosen and keeps it consistent right through to checkout and all mails, invoices.

• Diagnose the source of the mis-calculation (template, JS, or Traveller’s internal price function).
• Patch or override the offending logic without breaking any other Traveller features.
• Verify that prices show accurately across all activities when selecting ticket type.
• Provide a short note of what was changed so I can maintain it on future updates.
ONLY DIRECT FREELANCER WITH MORE THAN $ YEARS EXPERIANCE. NO AGENTS OR COMPANIES. NEED TO RESOLVE SOON.
CHECK VIDEO IN FILES ATTCHED.