No, I don’t make any changes to that area. The other pages (domain.com/my-account-week_pro/?subscriptions, domain.com/my-account-week_pro/?account_details) work well but the main Dashboard link (domain.com/my-account-week_pro/ is broken with the message I uploaded above. I also don’t use any child theme.
The theme is 12.3.1 and the Opt-in builder is 1.4.2.
I have imported another Account page in the Cloud Manager using TagDiv Composer but no luck.
I have just found the reason! The translation of Vietnamese (in the Theme Panel) has something that causes the error. If I switch to the default English translation, the error message above is gone. You need to check and test all translations to prevent other users from getting this issue like me in the future.
