Sign Up Issue - too much server side?

I have a wix website with a custom sign up route
Right now its throwing up an error that people cannot be signed up, although ive not touched the code and recently had it updated with the new member code.
So, I don’t know whats causing it.
Potentially it’s still asking to do too much server side and is timing out but i don’t know why it’s just changed when it was working.

Current sign up is such that:
Open lightbox
Contains a multistate box
Enter details (Name, gender, age, email, password) + Agree to T&C + Community (so their profile is public)
2nd state - enter more details

Submission does 3 things
Creates site member
Adds a role
Saves details into a collection