Critical error on word press website

I am looking for a skilled developer to help resolve a critical error on my existing business website. The error is related to functionality issues and requires immediate attention.

I’m using word press website with woocommerce and multiple accessory plugins .
The issue is : my website is showing the message : “ There has been a critical error on this website “
Which appears on product pages only . It started to appear suddenly without me doing anything ( we did not do any updates or new plugins recently ).
We tried to update all plugins , word press and Astra theme , but still no fix .

Skills and experience required:
- Strong knowledge and experience with WordPress
- Proficiency in troubleshooting and resolving functionality issues
- Familiarity with website maintenance and debugging
- Ability to work efficiently and quickly resolve critical errors

If you have the necessary skills and availability to address this high-priority issue, please submit your proposal.

Website : www.Medico-Store.com

Example of pages showing the error : https://medico-store.com/product/medcouture-women-labcoat/

?pleas be notified that the website has important data on it , so we can not loose it because of backup or restore .