Hi @dreamifly ,
Thanks for reaching out!
I understand that after transferring to another host, you receive a critical error when installing WooCommerce, is this correct?
Please confirm if this is the first time installing WooCommerce on the site in question, and if not, did you encounter this issue before (on your previous host)?
As a first step, I’d suggest performing a conflict test to rule out any theme/plugin conflicts that may be causing this issue.
The best way to determine this would be to:
If you’re not seeing the same problem after completing the conflict test, then you know the problem was with the plugins and/or theme you deactivated. To find the culprit, reactivate your theme, and then your plugins one by one.
More info on performing a conflict test is here.
You can clone your site to a staging environment and perform tests without modifying your live site or impacting customers. Many hosts provide staging facilities, so it’s worth checking in with them. It’s also possible to do it using the free WP Staging plugin. Link:?https://www.ads-software.com/plugins/wp-staging/
Let us know how this goes!